Final answer:
The net force acting on the magnet stuck to the refrigerator, while being pushed upward with 6 N of force, is 4 N downward. so, option c is the correct answer.
Step-by-step explanation:
The question pertains to determining the net force acting on a magnet that is being pushed against the side of a refrigerator. Given that the magnet weighs 10 N (which represents the force due to gravity acting downward) and that a hand is pushing upward with a force of 6 N, we can calculate the net force. Since the magnet does not move, we know that the forces are balanced, with the magnetic force holding the magnet to the refrigerator counteracting the upward push of the hand. The remaining force acting on the magnet is the difference of these two forces, 10 N (weight of the magnet) minus 6 N (upward push), which equals 4 N downward. Therefore, the correct answer is c) 4 N downward.
The net force acting on the magnet can be calculated by subtracting the force pushing upward from the weight of the magnet. The weight of the magnet is 10 N and the upward force applied is 6 N. Therefore, the net force is 10 N - 6 N = 4 N downward.