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AP® Physics C: Mechanics

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Circular Motion: Acceleration and Velocity of a Roulette Ball

APPHMC-2DTKAP

The ball in the casino game roulette travels around a circular track, gradually losing speed because of friction. Eventually, the ball falls down onto a wheel of numbered spaces; the wheel is spinning in the opposite direction of the ball.

Which diagram correctly shows the acceleration and velocity of the ball in the circular track if it is traveling in a counterclockwise direction as viewed from above?

A

John Krehbiel. Created for Albert.io. Copyright 2016. All rights reserved.

B

John Krehbiel. Created for Albert.io. Copyright 2016. All rights reserved.

C

John Krehbiel. Created for Albert.io. Copyright 2016. All rights reserved.

D

John Krehbiel. Created for Albert.io. Copyright 2016. All rights reserved.

E

John Krehbiel. Created for Albert.io. Copyright 2016. All rights reserved.