Two children push a 20 kg box on a smooth floor at the same time. Anil pushes with 50 N toward the east, while Bhavya pushes with 30 N toward the west. What is the net force on the box, and in which direction will it move?

The two forces act in opposite directions, so the net force is the difference: 50 N − 30 N = 20 N. The direction of the net force is that of the larger force, i.e., toward the east, so the box accelerates eastward. Option A would only be correct if both pushes were in the same direction (then they would add to 80 N). Option C reverses the direction. Option D would require the pushes to be equal in magnitude.