Question

A body of mass 5Kg starts and rolls down 32m of an inclined plane in 4s. Find the force acting on the body?

Answer 1

Answer:

The question is a little vague to be honest.

I shall assume the body starts from rest.

And I am assuming you are asking about the net force on the body (which caused it to move, cuz there are gravity,normal)

now using second equation of motion

x= ut + 1/2 at^2

32= 0*4 +1/2 a 16

32=8 a

a=4 m/s^2

Now Net force = ma (newton's second law)

Force = 5 * 4 =20 N

There you go.