Newton's first law of motion states that an object will keep a constant speed and direction unless acted upon by an unbalanced force.
To test this statement, Martin rolled a ball on a long, level street. The ball did not bump into any object, but it eventually came to a stop. How is this possible?
A.
Martin did not roll the ball hard enough, which caused the ball to eventually stop rolling.
B.
The unbalanced force that caused the ball to stop was friction.
C.
Every moving object must come to a stop because energy cannot be destroyed.
D.
Newton's first law of motion only holds true in space, not on Earth.