What units are use for expressing rotational velocity

rads/s

Or radians per seconds

Explanation:

A

Rotational velocity is the rate of velocity at which an object or a particle is rotating around a center or a specific point in a given time period. It is also known as angular velocity. Rotational velocity is measured in angle per unit time or radians per second (rad/s). The rate of change of angular/rotational velocity is angular acceleration.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.