oliviaal oliviaal

01-05-2020
Physics

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1200 kg car is being driven down a road. If it has 101 kJ of kinetic energy, what is its speed?

Respuesta :

01-05-2020

Kinetic Energy = (1/2) (mass) (speed)²

101,000 J = (1/2) (1200 kg) (speed)²

Speed² = 101,000 J / 600 kg

Speed² = 168 and 1/3 m²/s²

Speed = √(168 and 1/3 m²/s²)

Speed = 12.97 m/s

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