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Which of the following has a higher kinetic energy?

A 1000 kg car rolling at a speed of 5 m/s across the floor or a 1500 kg hippo swimming at a speed of 2 m/s


the hippo

their kinetic energies are equal

not enough information to determine

the car

User Tiago Reis
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7.9k points

1 Answer

7 votes

Answer:

To solve the problem, we need to use the formula for kinetic energy:

KE = (1/2) * mass * velocity^2

For the car:

KE = (1/2) * 1000 kg * (5 m/s)^2 = 12,500 J

For the hippo:

KE = (1/2) * 1500 kg * (2 m/s)^2 = 3000 J

Therefore, the car has a higher kinetic energy:

Answer: The car.

User Johnfo
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7.3k points