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You are lowering two boxes, one on top of the other, down a ramp by pulling on a rope

You are lowering two boxes, one on top of the other, down a ramp by pulling on a rope. Both boxes move together at a constant speed of 15 cm/s. The coefficient ofkinetic friction between the ramp and the lower box is .400, and the coefficient of static friction between the boxes is .800.

What is the force you need to apply to accomplish this?
What is the magnitude and direction of the total force from the 50kg mass acting on the 30kg mass?
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Answer #1
Please provide the angle of inclination.
answered by: dyl
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