The speed of a body weighing 7 kg within 4 s changed by 24 m / s, and for a body weighing 11 kg

The speed of a body weighing 7 kg within 4 s changed by 24 m / s, and for a body weighing 11 kg in 5 s by 30 m / s. Which body was affected by the greatest force?

Given: m1 (mass of the first body) = 7 kg; t1 (time of action of the force on the first body) = 4 s; ΔV1 (change in the speed of the first body) = 24 m / s; m2 (mass of the second body) = 11 kg; t2 (time of action of the force on the second body) = 5 s; ΔV2 (change in the speed of the second body) = 30 m / s.

1) The first acting force: F1 = m1 * a1 = m1 * ΔV1 / t1 = 7 * 24/4 = 42 N.

2) Second acting force: F2 = m2 * a2 = m2 * ΔV2 / t2 = 11 * 30/5 = 66 N.

3) Comparison of forces: F2 (66 N)> F1 (42 N), a large force acted on the second body.