Two rocks are moving through empty space in a straight line at the same speed. One has a mass of 10 kg, the other has a mass of 50 kg. Which statement about the rocks is true?
A.
Both will be stopped by the same amount of force acting against them.
B.
The one with less mass takes more force to stop.
C.
The one with greater mass takes more force to stop.
D.
Both will stop on their own without any force acting on them.