Question

A 14.5 lb box is placed on the ground.
What force (in lb) does the ground exert on the box?

Answer 1

The ground exerts an equal and opposite force of 14.5 lb on the 14.5 lb box according to Newton's third law of motion.

Step-by-step explanation:

The question pertains to the force the ground exerts on a 14.5 lb box placed on it. According to Newton's third law of motion, for every action, there is an equal and opposite reaction.

Therefore, if a 14.5 lb box is placed on the ground, the ground must exert an equal force upward to support the weight of the box, which is the normal force. In this case, the force (in lb) that the ground exerts on the box is also 14.5 lb.