Question

what is wrong with this collision model? nothing is wrong with this collision model. the force arrows should be in the same direction and equal size. the force arrows should be the same size or equal strength. the velocity of the objects should be in the same direction.

Explanation:

According to Newton's third law, when two objects collide, the forces they exert on each other are equal in magnitude and opposite in direction. In the collision model, the force arrows should be the same size (equal strength) as they represent action - reaction forces.

Answer:

The force arrows should be the same size or equal strength.