Question

two particles of masses 5kg and 10kg have equal momentum.ration of their kinetic energies??

Answer 1

Momentum of any object would be mass times it's velocity i,e P=M*V.

Given masses 5g and 35g, and momentum of both the objects are same, then

P= M1V1= M2V2,

P= 5*V1 = 35*V2, then

V1/V2 = 35/5 = 7.

Kinetic energy is ½mv²,

Ratio of kinetic energy would be

Ke1/ke2 = ½m1*v1² / ½m2*v2²,

Ke1/ke2 = (5/35)(7)² = 7

The ratio of kinetic energy will be 7:1.

Answer 2

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HERE'S THE ANSWER..

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♠️ Refer the attachment

✔️ $\boxed{K1 \: : \:K2 = 1\: : \:2}$

HOPE HELPED..

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