Answer:
Objects that are more dense, or have more mass, travel at a slower rate than less dense objects, and will need more force applied to make it go faster. A golf ball and a ping-pong ball may be the same size, but, a golf ball has more mass than the ping-pong ball does, so the golf ball has a greater density. Meaning that the golf ball will travel slower than the ping pong ball because the same amount of force was applied to both.
