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Two bodies have masses in the ratio 5 : 1 and kinetic energies in the ratio 125 : 9. Calculate theratio of their velocities.PLEASE ANSWER IT FASTLY |
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Answer» kinetic energy=1/2×mv2so take ratio of kinetic energies of both MASSES as:129/5=5/1×(v1/v2)2since we are taking ratios between the two bodies,we would compare the formulaand in the formulae,1/2 is common for both the bodies.So,1/2 gets cut off=>129/5×1/5=(v1/v2)2 underroot 129/25=v1/v2 11.35/5=v1/v2 so,ratio between VELOCITIES of both bodies is 11.35:5 HOPE it helped.... |
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