A 0.985 kg yo-yo with an average radius of 0.0610 m is released from rest and...

A 0.985 kg yo-yo with an average radius of 0.0610 m is released from rest and takes 4.84 s to fall 0.218 m.

The tension in the yo-yo string is N.

The value of the yo-yo’s moment of inertia is kgm2.

Find the yo-yo’s rotational velocity when the string has just reached its full length. rads/sec.

How much rotational kinetic energy does the yo-yo have? J

Once the yo-yo gets to the bottom of the string is does the trick called “Walking the Dog” in which it stays at the bottom, but keeps spinning. If the yo-yo decelerates at a rate of 3.33 rads/sec^2 and has a new radius of 0.00923 m, what is the coefficient of friction between the string and the axle? (You may get an unrealistic answer because of the variables in the problem.)

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genius_generous answered 1 year ago

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