Question

A body of mass 10kg travells 40m in 20sec .Find the kinetic energy?

Any one is there to answer this Question

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Answer 1

The kinetic energy of a body is

KE=

2

1

mv

2

=

2

1

(10)(2)

2

=20J

Answer 2

Answer:

Let's find the velocity at first.

Velocity = Distance/Time

= 40/20 m/s

= 2 m/s

Mass = 10 kg

K.E = 1/2mv^2

= 1/2*10*2*2 J

= 20 J

Hope this helps.