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a Yo-yo swung in a vertical circle. Mass is 100g, the string is 90cm and it...

a Yo-yo swung in a vertical circle. Mass is 100g, the string is 90cm and it traveled 3 circles(revolutions) per second. what is the centripetal acceleration.
answer choices are 28, 32, 284, 280

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Answer #1

3 circle per second = 6rad/sec ( angular velocity)

a=

So R=0 .9m

So using both a= . 9× (6π) ^2

= 319.77 N

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