Question: If the spring is compressed a distance and the coefficient of static friction between the tapered stub S and the slider A is sA,

If the spring is compressed a distance δ and the coefficient of static friction between the tapered stub S and the slider A is μsA, determine the horizontal force P needed to move the slider forward. The stub is free to move without friction within the fixed collar C. The coefficient of static friction between A and surface B is μAB. Neglect the weights of the slider and stub.

Given:

δ = 60 mm

μsA = 0.5

μAB = 0.4

k = 300N/m

θ = 30 deg

Fs=k8 HsA NA NA

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