Question: A factory worker pulls on a block using a rope. The block has a mass of 2 0 kg and the rope makes an angle

A factory worker pulls on a block using a rope. The block has a mass of 20kg
and the rope makes an angle of 25 degrees with the horizontal. The coefficient of
kinetic friction is .3.
a). If the applied force on the rope is 400N, what is the blocks acceleration?
b). What Force would barely overcome friction, i.e. what is the maximum force
that keeps the system in equilibrium?

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