The angle through which an object on a circular path moves through (radians)
What are angular velocity and angular speed
Angular speed = change in angle / time (rads-1)
Angular velocity = change in angulardisplacement / time
What is the graph for angular velocity when angular acceleration is constant
Straight line
When is angular momentum conserved
It is conserved only when no externalforces act on the object
What is Angular Impulse
The change in angular momentum or equivalently a product of a constant torque and time duration of that change
How does angular impulse relate to torque graphically
Angular Impulse is the area under the torque-time graph
Similar to impulse = area under force-time graph
How can the work done be calculated graphically with a non-constant torque
The work done is the area under the torque-angulardisplacement graph
Is there a frictional torque when rotating an object
Yes, there is a frictional force resisting motion which causes a frictional torque, and some work will need to be expended in overcoming the frictional torque
