Quantities used in Angular Motion

Question 1

Define angular displacement

Answer 1

The smallest change in angle between the starting and finishing point of a rotation

Question 2

Define angular velocity and give the formula

Answer 2

The rate of change of angular displacement
Angular velocity(rad/s)=angular displacement (rad)/time(s)

Question 3

Define Angular acceleration and give the formula

Answer 3

The rate of change of angular velocity
Angular acceleration(rad/s^2)=change in angular velocity(rad/s)/time(s)