Question

A 107 kg clock initially at rest on a horizontal floor requires a 673 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 522 N keeps it moving with a constant velocity.

(a) Find ìs between the clock and the floor.
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(b) Find ìk between the clock and the floor.


I thought I was doing the work right and everything but I just can't seem to get the right answer. Help please!