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A shell of mass 6 kg is fired from a gum of mass 600 kg .If recoil velocity of the gun is 3 m/s .Find velpcity of shell |
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Answer» m1=6 m2=600 u1=u2=0(before FIRING) V1=? v2=-3(RECOIL) m1v1+m2v2=m1u1+m2v2 6v1+600*-3=6*0+600*0 6v1+-1800=0 6v1=1800 v1=1800÷6 v1=300 velocity of shell=300m/s |
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