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Author Question: You are building a watermelon catapult for a school festival. The catapult arm is 1.5 m long, and a ... (Read 354 times)

jman1234

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Question 1

You are playing a music CD, which is rotating at 20 rad/s. You want to find another song, so you press the Fast Forward button. If 3 seconds later the CD’s angular velocity is 53 rad/s, what was the CD’s average angular acceleration?


33 rad/s2


10 rad/s2


53 rad/s2


11 rad/s2



Question 2

You are building a watermelon catapult for a school festival. The catapult arm is 1.5 m long, and a watermelon is initially at rest. The catapult is then triggered. At the point the watermelon is released, the catapult has a maximum angular velocity of 18 rad/s. What is the new tangential velocity of the watermelon?


4 rad/s2


12 rad/s2


9 rad/s2


6 rad/s2



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Marked as best answer by jman1234 on Oct 14, 2019

Briannahope

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