Posted by **Gloria** on Thursday, November 7, 2013 at 9:40pm.

If motor M exerts a force of

F=(10t2+100)N on the cable, where t is in seconds, determine the velocity of the

25kg crate when

t=4s . The coefficients of static and kinetic friction between the crate and the plane are

μs=0.3 and 0.25

μk=0.25 . The crate is initially at rest.

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