AP® Physics 1 & 2

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Moderate

Baseball on a Rope

APPH12-VS0ISD

Consider an isolated system in which a coach swings a baseball attached to a rope in a circle. The rope has a length of $2.25$ $m$ and the baseball's rotation around the coach has a period of $0.75$ $s$.

While the baseball is in motion, the coach pulls on the rope, reducing its length to $1.75$ $m$.

What is the new angular velocity of the baseball?

A

$8.38$ $rad/s$

B

$13.85$ $rad/s$

C

$24.24$ $rad/s$

D

$18.85$ $rad/s$