The wheel has weight WA and rests on a surface for which the coefficient of friction is B A cord wrapped around the wheel is attached to the top of the homogeneous block of weight WC If the coefficient of static friction at D is D determine the smallest vertical force that can be applied tangentially to the wheel which will cause motion to impend Given WA 20 lb B 0 2 WC 30 lb D 0 3 h 3 ft b 1 5 ft WA FB NB Wc h 2 Fp Np

Question: The wheel has weight WA and rests on a surface for which the coefficient of friction is B. A cord wrapped around the wheel is

The wheel has weight WA and rests on a surface for which the coefficient of friction is μB. A cord wrapped around the wheel is attached to the top of the homogeneous block of weight WC. If the coefficient of static friction at D is μD determine the smallest vertical force that can be applied tangentially to the wheel which will cause motion to impend.

Given:

WA = 20 lb

μB = 0.2

WC = 30 lb

μD = 0.3

h = 3 ft

b = 1.5 ft

WA т FB NB Wc h/2 Fp Np

WA FB NB Wc h/2 Fp Np

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