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July 23, 2014

Homework Help: Physics ASAP

Posted by Sierra on Monday, December 10, 2012 at 11:03am.

A block of weight 20 N is pushed with a force of 30 N through a horizontal distance of 5 m using a stick which is at an angle of 37° from the horizontal as shown. The coefficient of kinetic friction ľk between the table and the block is 0.25. For your own reference, draw a force diagram of the block.

A) What is the normal force on the block?
B) What is the frictional force between the block and the table?
C) What is the work done by the frictional force?
D) What is the net work done on the block?

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