Question

A boy weight 60kg and he runs at a speed of 3m/s. what is his K.E​

Answer 1

Weight of boy = 60 kg

speed = 3m/s

Kinetic Energy = 1/2mu 2

= 1/2 60x 3

= 1 /div 2 x 180

= 1x 90

= 90 J Ans.