A 1500-kg car is ascending the ramp of a garage inclined at 10° with constant speed when the force applied is P. determine the magnitude of force P if u=0.70
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Expert's answer
2018-08-13T12:00:09-0400
We have three forces acting on a car: P, the weight and friction force. For the motion with constant speed all forces need to be in equilibrium: P-mg sinα-μmg cosα=0 P=mg(sinα+μ cosα) P=1500(9.8)(sin10+0.7 cos10 )=13 kN.
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