Question

(ii) Two bodies A and B of identical masses 10 kg, are moving with a velocity of 15
m/s and 25 m/s respectively. Which of the two has greater kinetic energy?
Why?

Answer 1

Answer:

body B has more kinetic energy because of more velocity as kinetic energy also depends on the velocity of the body

Explanation:

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Answer 2

Answer:

I think bodyB has more kinetic energy compared to body A

Mass of body A= 10 kg

Velocity of body A=15 m/s

K.E= 1/2 mv^2

1/2 *10*(15)^2

5*225= 1125J

Mass of body B=10 kg

Velocity of body B= 25m/s

K.E=1/2mv^2

1/2*10*(25)^2

5*625=3125J

K.E of body B greater than the K.E of body A because 3125 greater than the 1125