A box of mass rests on a frictionless horizontal surface
PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
A box of mass m rests on a frictionless horizontal surface. One end of a light rope is attached to the box; the other end is pulled horizontally by a student who is not part of the defined system. The system consists of the box and the rope only. While the student pulls, which of the following forces contributes to the net impulse on the defined system?
(a) The gravitational force exerted by Earth on the box.
(b) The normal force exerted by the surface on the box.
(c) The horizontal pull exerted by the student on the rope.
(d) The tension that the rope exerts on the box.