Question

A spool (initially at rest) is pulled on a smooth horizontal surface by constant horizontal force F, such that the spool comes into a state of sustained rolling motion. Kinetic energy of the spool, after center of mass of the spool has moved a distance d, is
(1) Fd (2) Fdr1/r2 (3) Fd(r1+r2)/r2 (4) Fdr2/(r1+r2) ​

Answer 1

Answer:

fdr1/r2

Explanation:

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