Question

A man has a box of weight 10 kg. The energy of the
box, when the man runs with a constant velocity of 2m/
s along with the box behind the bus is
1) 10 J 2) 30 J 3) 20 4) 2 J

​

Answer 1

Answer:

when the man runs with the box (m=10kg)

with a velocity of V = 2m/s ,

it giains KE as :

KE=

2

1

mv

2

=

2

1

×10×(2)

2

=20J

Answer 2

Answer:

20J

Explanation:

mass x velocity

10 x 2

20J

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