During the spin cycle of your clothes washer, the tub rotates at a steady angular velocity of 31.7 rad/s. Find the angular displacement Δθ of the tub during a spin of 98.3 s, expressed both in radians and in revolutions.

and

Explanation:

The tub rotates at constant speed and the kinematic formula to describe the change in angular displacement (), measured in radians, is:

Where:

- Steady angular speed, measured in radians per second.

- Time, measured in seconds.

If and , then:

The change in angular displacement, measured in revolutions, is given by the following expression:

probably not if net force is zero

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