A body A of mass 20 kg is moving with
a velocity 1m/s, another body B of mass 1
kg is moving with a velocity of 20 m/s. The
ratio of K.E. of A and B is
(2 Points)
1:20
20:1
1:1
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Answer:
The right answer is 1:20
As
the formula of kinetic energy is:
K.E= 1/2 mv²
By putting values in the above equation for body a and B, we get K.E 10 ms-¹ and 200ms-¹
which is 1:20
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