A crate of mass m = 91 kg rests on a rough surface inclined at an angle of θ = 31° with the horizontal. A massless rope to which a force can be applied parallel to the surface is attached to the crate and leads to the top of the incline. In its present state, there is no tension in the rope and the crate is just ready to slip and start to move down the plane. The coefficient of kinetic friction is given by μk=fμs where μs refers to the coefficient of static friction and f = 0.75

A crate of mass m = 91 kg rests on a rough surface inclined at an angle of θ = 31° with the horizontal. A massless rope to which a force can be applied parallel to the surface is attached to the crate and leads to the top of the incline. In its present state, there is no tension in the rope and the crate is just ready to slip and start to move down the plane. The coefficient of kinetic friction is given by μk=fμs where μs refers to the coefficient of static friction and f = 0.75

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