Arunning back with a mass of 70 kg travels down the field with a velocity of 5.0 m s . calculate the kinetic energy of the football player.

K.E = 1/2 mv²

    =  1/2 (70kg) (5.0ms)²

    =  1 ˣ ( 1750) / 2

    = 875 kgms²

The kinetic energy of the player is B.) 875 Joules. This is found by multiplying the mass (70 kg) times the velocity (5  m /s) squared, and dividing the product by 2.

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