the door to the ic building is approximately 1.2meters wide. how far from the hi
ID: 1286353 • Letter: T
Question
the door to the ic building is approximately 1.2meters wide. how far from the hinges of that door should you push with a perpendicular force of 3 n if you would like create a torque of 2newton-meters about the hinge?
1. 1.50 meters
2. 0.40 meters
3. 0.80 meters
4. 0.67 meters
5. 0.33 meters
You are trying to cause a bolt to rotate by placing a torque on it with a large wrench. What can you do to try to increase the torque from the wrench?
(1) and (2)
(2) and (3)
6. all of the above
If an object has zero angular acceleration, what can you say about that object?
??=0
?Fy = 0
?Fx =0
4. all of the above
In linear motion, you could think of the mass of an object can be defined as how resistant it is to changes in its linear velocity for a given force F. (In other words, 'the constant of proportionality between F and a is m'.) What is the constant of proportionality between torque (?) and angular acceleration (?)?
tangential velocity, vT
angular velocity, ?
moment of inertia, I
4. angular momentum, L
the student changes his angular velocity by starting his spin with his arms stretched out and then drawing his arms in. By drawing his arms in, he is changing his
Torque
Moment of inertia
Angular momentum
Linear momentum
1. Increase the length (l) of the wrench. 2. Increase the force (F) you are placing on the wrench. 3. Change the angle between the direction of the force (F) and the wrench (l). 4.(1) and (2)
5.(2) and (3)
6. all of the above
If an object has zero angular acceleration, what can you say about that object?
1.??=0
2.?Fy = 0
3.?Fx =0
4. all of the above
In linear motion, you could think of the mass of an object can be defined as how resistant it is to changes in its linear velocity for a given force F. (In other words, 'the constant of proportionality between F and a is m'.) What is the constant of proportionality between torque (?) and angular acceleration (?)?
1.tangential velocity, vT
2.angular velocity, ?
3.moment of inertia, I
4.4. angular momentum, L
the student changes his angular velocity by starting his spin with his arms stretched out and then drawing his arms in. By drawing his arms in, he is changing his
1.Torque
2.Moment of inertia
3.Angular momentum
4.Linear momentum
Explanation / Answer
the door to the ic building is approximately 1.2meters wide. how far from the hinges of that door should you push with a perpendicular force of 3 n if you would like create a torque of 2newton-meters about the hinge?
4. 0.67 meters
You are trying to cause a bolt to rotate by placing a torque on it with a large wrench. What can you do to try to increase the torque from the wrench?
(1) and (2)
If an object has zero angular acceleration, what can you say about that object?
Torque = 0
In linear motion, you could think of the mass of an object can be defined as how resistant it is to changes in its linear velocity for a given force F. (In other words, 'the constant of proportionality between F and a is m'.) What is the constant of proportionality between torque (?) and angular acceleration (?)?
3) moment of inertia, I
the student changes his angular velocity by starting his spin with his arms stretched out and then drawing his arms in. By drawing his arms in, he is changing his
2) Moment of inertia
4.(1) and (2)
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