Question

An object of 40 kg mass moves under the influence of constant force on a smooth path on a smooth surface. In 6 seconds, its velocity decreases from 5 m / s to 2 m / s. Find the force applied to this object.​

Answer 1

Answer:

a=5-2/6

a=-1/2

F=ma

F=40*-1/2

F=-20

so the force is of 20 N in opposite direction