Questions

1.

If an object rotates through $\pi$ radians, how many revolutions does it undergo?

2.

What are two different possible choices or units for angular velocity?

3.

For the children on the teeter-totter in Figure5.2.1, if child 1 were double the weight of child 2, would the torque applied by child 1 about the fulcrum be greater or less than that of child 2? How much greater? What would child 1 have to do to restore the balance of the teeter-totter?

4.

Which has a greater moment of inertia, a wooden ring of mass 500 kg, or a solid wooden cylinder of the same mass and radius?

5.

Torque is the rotational analogue of force. What is the rotational analogue of inertial mass?