1)What is the speed of a projectile at landing after a launch from some height ?

Question

1)What is the speed of a projectile at landing after a launch from some height ?

A.Exactly the launching speed

B.Greater than the launching speed

C.Depends on the launching angle

D.lesser than launching speed

2)From your horizontal launch data you suppose to plot a graph "Distance squared" vs. "Height" in order to estimate launching speed from the slope of this line. If you plotted a graph "Height" vs. "Distance squared" and defined its slope "S", what formula should you use to compute launching speed ?

A.sqrt(g/2/S)

B.sqrt(2*g/S)

C.sqrt(2*S/g)

D.sqrt(2/g/S)

E.sqrt(S/2/g)

3)When two projectiles launched at the same speed will have absolutely identical trajectories ?

4)For ground launch you suppose to plot a graph "Range" vs. "Sin (of double launch angle)". What do you expect this function to be ?

A.hyperbolic

B.parabolic

C.linear

D.exponential

5)When the range of a projectile (ground launch) is zero ?

6)If a projectile is on ascend, what is the angle between its velocity and tangential component of acceleration ?

7)If a projectile is on descend, what is the angle between its velocity and tangential component of acceleration ?

4)For ground launch you suppose to plot a graph "Range" vs. "Sin (of double launch angle)". What do you expect this function to be ?

A.hyperbolic

B.parabolic

C.linear

D.exponential

5)When the range of a projectile (ground launch) is zero ?

6)If a projectile is on ascend, what is the angle between its velocity and tangential component of acceleration ?

7)If a projectile is on descend, what is the angle between its velocity and tangential component of acceleration ?

Explanation / Answer

1) B.Greater than the launching speed

2) A.sqrt(g/2/S)

3) when the angle of projection is same.

4) C.linear

5) if angle of projection is 90 degrees or initial speed is zero

6) there is no tangetial acceleration

7) there is no tangetial acceleration

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

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