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A woman exerts a horizontal force of 107 N on a box with a mass of...

A woman exerts a horizontal force of 107 N on a box with a mass of 40.2 kg.

(a)

If the box doesn't move, what's the magnitude of the static friction force (in N)?

N

(b)

What is the minimum possible value of the coefficient of static friction between the box and the floor? (Assume the box remains stationary.)

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