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April 21, 2014

Homework Help: college physics

Posted by help! on Sunday, March 7, 2010 at 5:37pm.

A rope is used to pull a 3.57 kg block at constant speed 5.10 m along a horizontal floor. The force on the block from the rope is 6.82 N and is directed 15 above the horizontal.

(a)What is the work done by the rope's force?

(b) What is the increase in the thermal energy of the block-floor system?

(c) What is the coefficient of kinetic friction between the block and floor?

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