A heavy box is placed at the top of arough ramp of length L = 4 m, and the coefficients of staticand dynamic friction between the box and ramp are M, = 0.8and Ma = 0.4, respectively.
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Rough moving truck ramp of length L. When a box of mass m moves down, a mover slides it with half the speed it was given at the top. The box reaches the bottom of the ramp at an angle θ above the horizontal and upward from the ground at an angle ϕ. The ramp is angled between the ramp and box is Hk. Use the coefficient of kinetic friction of the ramp. Your answer will include the variables g, m, L, θ, and μk.
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A 50 kg box is being loaded onto a truck using a ramp at a 40° angle with the horizontal. The box is pulled up the ramp by a rope with tension T parallel to the ramp. The coefficient of kinetic friction between the box and the ramp is μk = 0.28, and the coefficient of static friction is μs = 0.36. The tension has a magnitude of 570 N. A. Calculate the normal force exerted by the ramp on the box. B. Calculate the friction between the ramp and the box when the box is moving. C. Calculate the acceleration of the object. D. If the box starts moving from rest at the bottom of the ramp, calculate how far the box has traveled along the ramp by time t = 10 s.
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