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A large block of mass M = 80 kg is held stationary on a frictionless ramp. The ramp is at an angle 0f = 36.

A large block of mass M = 80 kg is held stationary on a frictionless ramp. The ramp is at an angle
0f θ = 36.87o above horizontal, and has a coefficient of kinetic friction between the block and the
ramp μ = 0.1. If the block is held in place by a horizontal force, directed horizontally toward the
center of the ice block, the magnitude of force is:
Ans: 4.74 × 102 N (F = [mg (sin θ -μ cos θ) /(cos θ + -μ sin θ)])
again, to explain how to find this answer, thanks.
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Physics-8094825.doc

A large block of mass M = 80 kg is held stationary on a frictionless ramp. The ramp is at an angle
0f θ = 36.87o above horizontal, and has a coefficient of kinetic friction between the block and...

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