A car weighing 1.5 tons moves at a speed of 72 km / h. Calculate the kinetic energy of the car.
| February 16, 2021 | education
To find the kinetic energy of the presented car, we use the formula: Ek = ma * V ^ 2/2.
Variables: mа – mass (mа = 1.5 t = 1.5 * 10 ^ 3 kg); V is the speed of the presented vehicle (V = 72 km / h = 20 m / s).
Calculation: Ek = ma * V ^ 2/2 = 1.5 * 103 * 20 ^ 2/2 = 300 * 10 ^ 3 J.
Answer: The presented car, according to the calculation, has a kinetic energy of 300 kJ.
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