AP Physics C: Rotational Kinematics Review (Mechanics)

For this equation to work, in what unit should the angular displacement be measured?

• degrees

• revolutions

• radians

How is tangential velocity different from regular velocity?

Is the tangential velocity constant?

• Yes

• No

Tangential acceleration is ______ to the velocity and causes the object to _________.  Centripetal acceleration is _______ to the velocity and causes the object to __________.

• perpendicular, change direction; parallel, change speed.

• parallel, change direction; perpendicular, change speed

• parallel, change speed; perpendicular, change direction

• perpendicular, change speed; parallel, change direction

If a_c = 3 and a_t = 4, what is the sum or a_net?

• 7

• 5

• 6

If an object has traveled through one full circle, how many radians has it traveled through?

• 2r

• 2

• 2

•