A ball with a mass of 1 kg is moving in a straight line at the same speed as a ball with a mass of 10 kg. Both balls are brought to rest in 4.0 seconds. What is true of the force required to stop the balls?
A. It takes less force to stop the 1 kg ball because it has less inertia
B. It takes more force to stop the 1 kg ball because it has more inertia.
C. It takes the same force to stop both balls because they are moving at the same speed.
D. It takes less force to stop the 10 kg ball because it has less inertia.
