A dolphin weighing 150 kg swims at a speed of 12 m / s. Determine the kinetic energy of the dolphin.

m = 150 kg.

V = 12 m / s.

Ek -?

The kinetic energy of a body Ek of mass m, which moves with a speed V, is determined by the formula: Ek = m * V ^ 2/2.

Ek = 150 kg * (12 m / s) ^ 2/2 = 10800 J.

Answer: when moving, the dolphin has kinetic energy Ek = 10800 J.

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