Initial data: V (speed at which the motorcyclist rides) = 20 m / s; m (the mass of the rider in question) = 60 kg.
The kinetic energy of the motorcyclist in question is determined by the formula: Ek = 0.5 * m * V ^ 2.
Calculation: Ek = 0.5 * 60 * 20 ^ 2 = 12,000 J (12 kJ).
Answer: The kinetic energy of the rider in question is 12 kJ.
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