Question

which golf ball(s) experienced the strongest force when hit? how do you know?
a the white and purple golf balls because they gained force, while the green golf ball lost force.
b the green golf ball because it takes a stronger force to slow something down than to speed something up.
c the green golf ball because it changed speed the most.
d the white golf ball because it has the fastest ending speed.

Explanation:

According to Newton's second - law of motion ($F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration), a greater change in speed (acceleration) for a given mass indicates a greater force. If we assume the mass of the golf balls is the same, the ball that changes speed the most experiences the strongest force.

Answer:

C. The green golf ball because it changed speed the most.