Please help with physics?

Posted on 2015-10-05 06:40:00 in Math by SHOLMO

A box with mass m = 2.5 kg rests on the top of a table. The coefficient of static friction between the box and the table is ?s = 0.61 and the coefficient of kinetic friction is ?k = 0.32.
Part (a) Write an expression for Fm the minimum force required to produce movement of the box on the surface.
Part (b) Solve numerically for the magnitude of the force Fm in Newtons.
Part (c) Write an expression for a, the box's acceleration, after it begins moving. (Assume the minimum force, Fm, continues to be applied.)
Part (d) Solve numerically for the acceleration, a in m/s2.

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