a) A 46 kg box is pulled on a floor using a string attached to the box and inclined 15° above the horizontal. (a) If the coefficient of static friction is 0.50, what minimum force magnitude is required from the rope to start the box moving? (b) If µk =0.35 (coefficient of kinetic friction), what is the magnitude of the initial acceleration of the box?
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Explanation:
A)concept of component vectors
b) force equation
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