The body moves in a straight line in one direction. Under the action of a constant force of 5 N, the body momentum

The body moves in a straight line in one direction. Under the action of a constant force of 5 N, the body momentum increased from 20 to 30 kg m / s. How long did it take for this?

The force, the change in momentum under the action of this force and the time interval during which the change occurred are related according to Newton’s second law, by the ratio:
F = Δp / Δt
Therefore, in order to increase the impulse from 20 to 30 it was required:
Δt = [Δp] (modulus) / F = [30 – 20] / 5 = 2 s
Answer: 2 s.