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A body of mass 50 kg rests on a rough horizontal surface (mu = 0.4) and is acted upon by a push applied at an angle of 45 degrees to the horizontal. Determine the magnitude of push if it causes the an acceleration of 2 m/s^2 |
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Answer» ed QUESTIONS We KNOW frictional FORCE f=μN where N=normal force=mgGiven sliding frictionμ=0.25 THUS, f=0.25×50×10=125NHence Fnet=Fapp−f=575−125=450NAlso we know ForceF=maa=50450=9m/s2 |
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