Question

1. A boy of mass 40 kg is running with the speed of 54 km/h. Calculate the Kinetic energy possessed by the body.​

Answer 1

Answer:

m = 40 kg,

v = 54 km/h = 15 m/s

K.E. = 1/2 mv^2 = 4500 J

Explanation:

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Answer 2

Explanation:

mass = 40kg

speed=54km/h

. =54×1000/60×60

=15m/sec

K.E=1/2 mv²

=1/2×40×15×15

=4500J