11. %u2013 /2 points CJ9 8.P.036. My Notes | Question Part Points Submissions Us

Question

11.%u2013/2 pointsCJ9 8.P.036.My Notes  | Question Part Points Submissions Used An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, with an average tangential speed of 42.4 m/s. Find the average angular speed and the radius of the track. (a) the average angular speed
rad/s

(b) the radius of the track
m
5.%u2013/1 pointsCJ9 8.P.010.My Notes  | Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2



11.%u2013/2 pointsCJ9 8.P.036.My Notes  | 11.%u2013/2 pointsCJ9 8.P.036.My Notes  | Question Part Points Submissions Used An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, with an average tangential speed of 42.4 m/s. Find the average angular speed and the radius of the track. (a) the average angular speed
rad/s

(b) the radius of the track
m
5.%u2013/1 pointsCJ9 8.P.010.My Notes  | Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2



Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, with an average tangential speed of 42.4 m/s. Find the average angular speed and the radius of the track. (a) the average angular speed
rad/s

(b) the radius of the track
m
5.%u2013/1 pointsCJ9 8.P.010.My Notes  | Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2



An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, with an average tangential speed of 42.4 m/s. Find the average angular speed and the radius of the track. (a) the average angular speed
rad/s

(b) the radius of the track
m
5.%u2013/1 pointsCJ9 8.P.010.My Notes  | Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2



(a) the average angular speed
rad/s

(b) the radius of the track
m
5.%u2013/1 pointsCJ9 8.P.010.My Notes  | Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

5.%u2013/1 pointsCJ9 8.P.010.My Notes  | 5.%u2013/1 pointsCJ9 8.P.010.My Notes  | Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

A floor polisher has a rotating disk that has a 12-cm radius. The disk rotates at a constant angular velocity of 1.3 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 48 s, in order to buff an especially scuffed area of the floor. How far (in meters) does a spot on the outer edge of the disk move during this time?
m
14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

14.%u2013/1 pointsCJ9 8.P.041.My Notes  | 14.%u2013/1 pointsCJ9 8.P.041.My Notes  | Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseball travels a horizontal distance of 16.1 m and rotates through an angle of 46.1 rad. The baseball has a radius of 3.67 cm and is rotating about an axis as it travels, much like the earth does. What is the tangential speed of a point on the "equator" of the baseball?
m/s
19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | 19.%u2013/2 pointsCJ9 8.P.062.GO.My Notes  | Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2

A ball of radius 0.200 m rolls with a constant linear speed of 3.22 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.26 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? %u03B8 = ---Select---radrad/s^2rad/ssmm/sm/s^2



Question Part Points Submissions Used

Explanation / Answer

1)a)let it be w and r.so,

2*pi*r/t=w

or 2*pi*r/19.5=w

also,

w*r=42.4

so angular speed=3.696 rad/s

radius=11.47 m

2)w=1.3*2pi

=8.17 rad/s

so distance=w*r*t

=8.17*0.12*48

=47.06 m

3)time=d/v

=16.1/42.5

=0.379 s

tangential point at the equator=46.1*0.0367/0.379

=4.464 m/s

4)time=(2h/g)^0.5

=0.679 s

so angle=(3.22/0.2)*0.679

=10.93 rad/s

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.