question_answer

  When small boy is trying to push a heavy stone, mention various forces acting on the stone.

Answer:

                  The various forces acting on the stone are (i) the force of reaction exerted by the ground on the stone vertically upwards. (ii) the gravitational force exerted by the earth which pulls the stone downwards. (iii) the force of friction exerted by the stone. (iv) the force of pushing exerted by the boy.