Consider the following experiments:
In experiment 1, a student measures how fast the baseball team’s pitcher throws a fastball. Then, the student measures the speed of the same ball thrown by another student.
In experiment 2, a student separately launches a ping pong ball and a more massive golf ball using a spring. The spring is pulled back as far as it goes each time. The student measures how far each ball travels.
Which experiment is the better test of how mass affects an object’s motion?