Question

what is wrong with the following model?
moment of peak force
free body diagram for ______ free body diagram for ______
according to newtons third law of motion, the arrows (forces) should be equal in length.
according to newtons second law of motion, the arrows (forces) should be equal in length.
according to newtons first law of motion, the arrows (forces) should be equal in length.

Explanation:

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. In the context of the boxer and the punching bag, the force exerted by the boxer on the bag (action) and the force exerted by the bag on the boxer (reaction) should be equal in magnitude. This is represented by the length of the force arrows in a free - body diagram. If the arrows (forces) are not equal in length, it violates Newton's Third Law.

Answer:

According to Newton’s Third Law of Motion, the arrows (forces) should be equal in length.