Question

fill in the blank question
a green ball moving east collides with a red ball that is not moving. a force to the is exerted on the red ball. the red ball exerts a force to the on the green ball.

Explanation:

When the east-moving green ball hits the stationary red ball, it exerts an eastward force on the red ball to make it move east. By Newton's Third Law of Motion, for every action force there is an equal and opposite reaction force, so the red ball exerts a westward force on the green ball, opposing its original eastward motion.

Answer:

1. east
2. west