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# 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 $2.25\text{ m}$ and the baseball's rotation around the coach has a period of $0.75\text{ s}$.

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

Which of the following is the new angular velocity of the baseball?

A

$8.38\text{ rad/s}$

B

$13.85\text{ rad/s}$

C

$24.24\text{ rad/s}$

D

$18.85\text{ rad/s}$