A man of mass `80kg` pushes a box of mass `20kg` horizontally. The man moves the box with a constant acceleration of `2m//s^(2)` but his foot does not slip on the ground. There is no friciton between the box and the ground, whereas there is sufficient friction between the man's foot and the ground to prevent him from slipping.
Assertion`:-` The force applied by the man on the box is equal and opposite to the force applied by the force applied by the box on the man.
Reason `:-` Friction force applied by the ground on the man is `200N`.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are False

Answer

B