Blocks A and C are connected by a rope that passes over drum B Knowing that the drum rotates slowly clockwise and that the coefficients of friction at all surfaces are mu s 0 30 and mu k 0 20, determine the smallest mass of block C for which block A (a) Will remain at rest, (b) Will be in impending motion up the incline, (c) Will move up the incline at a constant speed 6 kg 20 30

Question: Blocks A and C are connected by a rope that passes over drum B. Knowing that the drum rotates slowly clockwise and that the coefficients

Blocks A and C are connected by a rope that passes over drum B. Knowing that the drum rotates slowly clockwise and that the coefficients of friction at all surfaces are μs =0.30 and μk = 0.20, determine the smallest mass of block C for which block A
(a) Will remain at rest,
(b) Will be in impending motion up the incline,
(c) Will move up the incline at a constant speed.

6 kg 20 30

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