# A car weighing 103 kg moves at a speed of 10 m / s. What is the kinetic energy of a car?

September 20, 2021 | education

| For a closed system, the kinetic energy of a moving car is equal to:

Ek = (m * V ^ 2) / 2, where Ek is the kinetic energy of the car (J), m is the mass of the car (m = 103 kg), V is the speed of the car (V = 10 m / s).

Let’s calculate the kinetic energy of a moving car:

Ek = (m * V ^ 2) / 2 = (103 * 10 ^ 2) / 2 = 103 * 100/2 = 5150 J ≈ 5 * 10 ^ 3 J.

Answer: 4) The kinetic energy of a moving car is 5 * 10 ^ 3 J.

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