Igor moves a crate out of a lab by allowing it to slide down a ramp....
Igor moves a crate out of a lab by allowing it to slide down a ramp. Because the contents are fragile, he wants the crate to move with a slow, constant velocity. To do this, he attaches a rope to the crate as it slides down the ramp. The coefficients of friction between the crate and the ramp are static=0.5 and kinetic=0.2. If the crate has a mass of 72 kg, what is the tension in the rope? (angle of the ramp is 40 degrees from horizontal)
Homework Answers
tension in the rope
T + u mg cos x = mg sin x
T + 0.2* 72* 9.8 cos 40 = 72* 9.8 sin 40
T = 345.447 N
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