two bodies of masses 1 kg and 3 kg have equal kinetic energy . find the ratio of their velocities?
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Answer:1:3
Explanation:
mass of 2 bodies,A=1kg ,B=3kg
kinetic energy=1/2mv2
K.E. of A=1/2mv2=1/2*1*v2=V2/2
K.E. of B=1/2mv2=1/2*3*V2=3V2/2
Ratio of the velocities of two bodies=(V2/2)/(3V2/2)
=V2/2*2/3V2
=V2/3V2
=1:3
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