Question

A bidy of mass 2 kg moving on a horizontal surface with an initial velocity4 m/s comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity4m/s the force required is

Answer 1

Answer:

4N

Explanation:

take out answer by putting v=u+at

a will be -2m/s2

F=-4N

so to make equal we will provide a force from opposite direction to make it with const velocity.. F=4N