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[-/2.85 Points]DETAILSOSCOLPHYS2016 5.1.P.019.

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A contestant in a winter games event pulls a49.0kg block of ice across a frozen lake with a rope over his shoulder as shown in the figure.

The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03.

(a)

Calculate the minimum forceF(in N) he must exert to get the block moving.

N

(b)

What is its acceleration (in m/s²) once it starts to move, if that force is maintained?

m/s²