If a body weighing 10 kilograms, under the action of a force of 25 minutes, increased its speed by 2.5 m / s.

Given:

m = 10 kilograms is the mass of a moving body;

t = 25 minutes = 1500 seconds – the period of time during which the force F acted on the body;

dV = 2.5 m / s – change in speed over a period of time t.

It is required to determine F (Newton) – the force acting on the body.

Let us find the acceleration that the body received as a result of the action of the force:

a = dV / t = 2.5 / 1500 = 0.002 m / s ^ 2.

Then, according to Newton’s second law, the force will be equal to:

F = m * a = 10 * 0.002 = 0.02 Newton.

Answer: the force acting on the body is 0.02 Newton.