help with inertia

Question

  1.  a ball remains at rest on the ground.  the fact that it does not move

 

a.  illustrates the law of inertia

b.  indicates that the net force acting on the ball is 0

c.  both a and b

d.  none of these

 

 

2.  a ball is rolling on the ground in a straight line at a constant speed.  the fact that it is moving at a constant speed in a straight line

 

a.  illustrates the law of inertia

b.  indicates that the net force acting on the ball is 0

c.  both a and b

d.  none of these

Answer 1

The answers to both questions is c and is a result of no net force acting on the body.

Jim