OpenStudy (anonymous):

A factory worker pushes horizontally to the right on a 250 N crate with a force of P = 75.0 N on a horizontal rough floor. A 135 N crate rests on top of the one being pushed and moves along with it. Call the bottom crate A and the top crate B. (Note: Draw the force vectors with their tails at the dot. The exact lengths of the vectors are not important but the orientation is.) 1) Make a free-body diagram of the crate B if the friction force is less than the worker's push. Show the friction force from box A, weight of box B, and the normal force from box A:

5 years ago
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