In moving a box of mass 75kg down a slippery (but notfrictionless) incline (angl

Question

In moving a box of mass 75kg down a slippery (but notfrictionless) incline (angle 20), a mover finds he must exert ahorizontal force of 200N to keep the box from accelerating down theincline. a. find normal force of the box b, find coefficient ofkinetic friction between box and moving ramp,. Please step by step solution. In moving a box of mass 75kg down a slippery (but notfrictionless) incline (angle 20), a mover finds he must exert ahorizontal force of 200N to keep the box from accelerating down theincline. a. find normal force of the box b, find coefficient ofkinetic friction between box and moving ramp,. Please step by step solution.

Explanation / Answer

Normal force N=mgcos=75*9.8cos20=690.674076N The resultant force is given by mgsin20-fr=200 75*9.8(sin20-kcos20)=200 From this we get the coefficient of kinetic friction as. Hence we get by it.

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