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You attach a 100-g puck to a string and let the puck glide in a circle...

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Physics

You attach a 100-g puck to a string and let the puck glide in acircle on a horizontal, frictionless air table. The other end ofthe string passes through a hole at the center of the table. Youpull down on the string so that the puck moves along a circularpath of radius 0.50 m. It completes one revolution in 6.0 s.

If you pull harder on the string so the radius of the circleslowly decreases to 0.40 m, what is the new period ofrevolution?

Tf =

Answer & Explanation Solved by verified expert
4.0 Ratings (524 Votes)
Mass of the puck M 100 g 01 kgInitial radius of the circle R1 05 mInitial moment of inertia of the    See Answer
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