A Speeding Truck Slams on Its Breaks and Skids to a Stop

Multiple Choice

A speeding truck slams on its breaks and skids to a stop. If the truck were heavily loaded so it had twice the total mass, the skidding distance would be

A) half as far.
B) one-and-a-half times as far.
C) 2 times as far.
D) 4 times as far.
E) the same.