The amount of work done on a rotating body can be expressed in terms of the product of
A)force and lever arm.
B)torque and angular velocity.
C)torque and angular acceleration.
D)force and time of application of the force.
E)torque and angular displacement.

Question

Quizplus · Accepted Answer

The amount of work done on a rotating body can be expressed in terms of the product of torque and angular displacement. This is because work is a measure of the energy transferred to an object and in rotation, torque is what transfers energy to the object, while angular displacement is the motion of the object around the axis of rotation. Therefore, the product of these two quantities gives us the amount of work done on the rotating body.

The Amount of Work Done on a Rotating Body Can