box of mass 40 kg is pulled on the floor by
a light rope with a force 200 N. The rope
makes an angle of 30° with the horizontal.
Determine the acceleration of the box, if the
coefficient of the kinetic friction between the
floor and the box is 0.20. Draw the free body
diagram. Identify the no-work forces from
amongst the forces exerted on the box.
Take g = 10 ms-2.
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