A boy and a girl and a girl are running with the same speed find the mass of the boy is 20 times that of the girls find the ratio of their kinetic energy
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Given: Speed(v) is same
mass of the boy = 20(mass of the girl)
m(boy)= 20m(girl)
so ratio of their kinetic energy=
= 1/2mv²/1/2mv²
= mv²/mv²
since speed is same,
and m(boy) = 20m(girl)
= m/20m
= 1/20
So, ratio of their kinetic energy will be 1:20.Ans.
mass of the boy = 20(mass of the girl)
m(boy)= 20m(girl)
so ratio of their kinetic energy=
= 1/2mv²/1/2mv²
= mv²/mv²
since speed is same,
and m(boy) = 20m(girl)
= m/20m
= 1/20
So, ratio of their kinetic energy will be 1:20.Ans.
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Answer:
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Explanation:
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