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What is the velocity of a 60.0 kg jogger with a kinetic energy of 1,080.0 J?

User DraganB
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1 Answer

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

1,080 J = (1/2) (60 kg) x (speed)²

(speed)² = 1,080 J / 30 kg = 36 m²/s²

Speed = √(36 m²/s²) = 6 m/s .

We can't say anything about the jogger's velocity, since there is
no information in the question to describe the direction of his motion.

User Charles Miller
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