Question

a cricket ball of mass 0.15kg is moving with a speed of 40m/s. what is the kinetic energy

Answer 1

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Answer 2

The formula for finding the kinetic energy( K.E) is given as follows:

K.E= 1/2 mv^2, where m is the mass of the ball and v is the speed/ velocity of the ball

Mass(m) is given as 0.15 kg

Velocity is given as 40 m/s

So the Kinetic Energy(K.E) can be calculated as :

1/2 × 0.15 × 40 × 40 = 120 kg m^2 / s^2 or 120 Joules( J)

Therefore, the kinetic energy of the cricket ball is 120 kg m^2/s^2 or 120 J.