# A body of mass m = 10 kg initially resting in the IFR begins to act on a constant force, the value of which

**A body of mass m = 10 kg initially resting in the IFR begins to act on a constant force, the value of which is: a) F = 100H; b) F = 200H; c) F = 1000H Determine the values of the body’s acceleration and its velocity in t = 1s and t = 2s after the start of movement.**

Given:

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

t1 = 1 second – time interval;

t2 = 2 seconds – time interval;

a) F = 100 Newton;

b) F = 200 Newton;

c) F = 1000 Newton.

It is required to determine a (m / s2) – the acceleration of the body, as well as v1 and v2 (m / s) – the speed of the body for cases a, b and c.

For case “a”:

a = F / m = 100/10 = 10 m / s2.

v1 = a * t1 = 10 * 1 = 10 m / s.

v2 = a * t2 = 10 * 2 = 20 m / s.

For case “c”:

a = F / m = 200/10 = 20 m / s2.

v1 = a * t1 = 20 * 1 = 20 m / s.

v2 = a * t2 = 20 * 2 = 40 m / s.

For case “c”:

a = F / m = 1000/10 = 100 m / s2.

v1 = a * t1 = 100 * 1 = 100 m / s.

v2 = a * t2 = 100 * 2 = 200 m / s.