Question

Calculate the kinetic energy of a body of mass 0.1kg and momentum 20kg m/s

Answer 1

K.E = p^2/ 2m
=(20×20)/(2×0.1)
=2000 J

Answer 2

Answer:

p=mv

k = 1/2 m x ( p / m )^2 = p^2 / 2m

k = (20)^2 / 2 x 0.1

k= 2000 J => 2 x 10^3 J

Explanation:

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