You slam on the brakes of your car in a panic,and skid a certain distance on a straight level road.If you had been traveling twice as fast,what distance would the car have skidded,under the same conditions?
A)It would have skidded 4 times farther.
B)It would have skidded twice as far.
C)It would have skidded 1.4 times farther.
D)It would have skidded one half as far.
E)It is impossible to tell from the information given.

Question

Quizplus · Accepted Answer

The distance skidded by a car under braking on a level road is proportional to the square of the speed. Therefore, if the speed is doubled, the skidding distance becomes four times as far.

You Slam on the Brakes of Your Car in a Panic,and