Question

two bodies of equal masses are moving with velocities v and 3v respectively. The ratio of their K.E is:

Answer 1

ke in case 1=1/2*m*v*v=mv²/2
ke in case 2=1/2*m*3v*3v=9mv²/2
ratio of ke in case 1: ke in case 2
=mv²/2:9mv²/2=1:9
hope it helps you

Answer 2

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