Question

A force 50 N acts on a block A of mass 3 kg which is in contact with a block B of mass 2 kg, as shown in the figure. Find the forces acting on A and B. Will the same forces act on A and B if instead of applying the force to A, it is applied to B?

Answer 1

Both the blocks move with the same acceleration given by
`a = ("Force applied on A")/("Mass of A + Mass of B")`
The force on B is `F_(B) = m_(B) xx a`
Then, B exerts an equal but opposite force on A.
= 50 - `F_(B)`