Which kinetic energy does a car with a mass of 1.5 tons moving at a speed of 54 km / h have?

As we know for sure from the school physics course, in order to determine what the kinetic energy of a conditional body will equal, it will be necessary to use the following formula:

Eк = 1/2 * m * v ^ 2.

Let us determine that the value will be equal to the kinetic energy of a car, whose mass is 1.5 tons, when its speed, according to the condition of this task, is 54 km / h:

54 km / h – this will be 15 m / s;

1.5 tons – this will be 1500 kilograms:

1/2 * 1500 * 15 ^ 2 = 168750.

Answer: 168750 J.