Asked by sylvia

using the strap at an angle of 31° above the horizontal, a Grade 12 Physics student, tired from studying, is dragging his 15 kg school bag across the floor at a constant velocity.

(a) If the force of tension in the strap is 51 N, what is the normal force on the bag?
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(b) What is the coefficient of kinetic friction between the bag and the floor?
Answered by bobpursley
wouldn't it be weight minus the vertical component of the pulling force?

b) THe horizontal force=friction=mu*(mg-vertical force)=51cosTheta
Answered by tgegte
bgfgt