1.

Two bodies A and B have their masses in the ratio 3:1 and kinetic energy in the ratio 1:3. then ratio of their velocities are

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Your ANSWER is :-


Let, the mass of body A be 3x and mass at d body B be 1x

°•° ration of their KINETIC ENERGY is 1:3

So,


(1/2m1v1^2)/(1/2m2v2^2) = 1/3

=> (3x×v1^2)/(x×v2^2) = 1/3

=> v1^2/v2^2 = 1/9

=> (v1/v2) = √(1/9)

=> v1/v2 = 1/3


hence, ration of their velocity is 1:3


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