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A body of mass 1kg, moving with a velocity of 4m/s collides with a body of mass 0.5kg moving with a velocity of 2m/s. If tge velocity of the first body after collision is 8/3m/s, find the velocity of the second body after collision? |
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Answer» tial momentum=(40*4)+(60*2)=280kgm/s.As collision is perfectly inelastic, final mass of both solids(both stuck together)=100 kgFinal VEL. of COMBINED solids=Tot. Mom./Tot. Mass=280/100=2.8m/sAs K.E.=0.5*m*v^2Initial K.E.=(.5*40*4^2)+(0.5*100*2^2)=320+120=440JFinal K.E.=0.5*100*2.8^2=392JLoss in K.E.=440–392=48 J |
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