Question

The car is moving with a velocity of 54 km/h. The kinetic energy of a boy of mass 40 kg sitting in the car is

Answer 1

Velocity in m/s = 54*5/18

v= 15m/s

Kinetic Energy = 1/2m$v^{2}$

KE= 1/2*40* $15^{2}$=4500 J

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