Question

A body which is put on a horizontal plane moves with a constant acceleration when a constant force acts on it. Fig.5 shows the change of it's acceleration a, with respect to the force F. From this diagram determine the coefficient of kinetic friction μ between the body and the plane. ( taking g = 10ms-2)

Answer 1

as the plane is rough i.e. it has some friction..the acceleration of body is zero..that means that the body is at rest..
and 6 N force is needed to move the body..
then\[\mu m g=6\]
and from here we can find \(\mu\)

Answer 2

how can find its m ??