Determine the body mass, which, under the action of a force of 12 N, increases the speed in 6

Determine the body mass, which, under the action of a force of 12 N, increases the speed in 6 seconds from 2 m / s to 20 m / s.

Initial data: F (effective force) = 12 N; t (time interval during which the body increased its speed) = 6 s; V1 (initial speed) = 2 m / s; V2 (final speed) = 20 m / s.

1) The acceleration with which the body increased its speed: a = (V2 – V1) / t = (20 – 2) / 6 = 3 m / s2.

2) Body weight: m = F / a = 12/3 = 4 kg.

Answer: The body in question has a mass of 4 kilograms.