# A hare weighing 5 kg can accelerate to a speed of 60 kg per hour. Determine the kinetic energy of a hare.

August 22, 2021 | education

| The kinetic energy of a moving hare can be calculated using the formula:

Ek = m * V² / 2, where Ek is the kinetic energy of the hare (J), m is the mass of the hare (m = 5 kg), V is the speed of the hare (V = 60 km / h = 60 * 1000/3600 = 16, 67 m / s).

Let’s calculate the kinetic energy of the hare:

Ek = m * V² / 2 = 5 * 16.67² / 2 = 695 J.

Answer: The kinetic energy of a hare is 695 J.

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