According to Newton s First Law of Motion, if you roll a ball in a straight line in an open field, what will happen to the ball?

a. The ball will continue on forever.

b. The ball will slow down.

c. The ball will not change its velocity.

d. The ball will speed up.

B. The ball will slow down.

Newton's first law of motion states that a body will remain at rest or in uniform motion in a straight line unless acted upon by an external force. In the open field, there are external forces acting on the ball e. g. friction hence the ball slows down.