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A student on a piano stool rotates freely with an angular speed of 3.05 rev/s ....

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Physics

A student on a piano stool rotates freely with an angular speedof 3.05 rev/s . The student holds a 1.05 kg mass in eachoutstretched arm, 0.779 m from the axis of rotation. The combinedmoment of inertia of the student and the stool, ignoring the twomasses, is 5.53 kgâ‹…m2 , a value that remains constant.

Calculate the initial kinetic energy of the system.

Calculate the final kinetic energy of the system.

Please list every steps

Answer & Explanation Solved by verified expert
4.5 Ratings (944 Votes)
Given that initial angular velocity i 305 revsrevsec change into rads i 305 2i 191 radsmass of object    See Answer
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