Compute what force must you exert on the thread

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A narrow but solid spool of thread has a radius R and mass M. If you pull up on the thread therefore that the center of mass of the spool remains suspended in the air at the same place as it unwinds,

(a) compute what force must you exert on the thread?

(b) Compute how much work has you done by the time the spool turns with an angular velocity ω?

Reference no: EM13660287

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