Question

a fan is rotating clockwise and its acceleration has a positive sign. is the angular velocity of the fan speeding up, slowing down, or constant?

Answer 1

The angular velocity is slowing down.

Step-by-step explanation:

• By convention, if a rigid body is rotating clockwise, the angular velocity is negative.
• If the angular acceleration has a positive sign, since the angular acceleration and the angular velocity have opposite signs, this means that the angular velocity is slowing down.