If it takes 50 m to stop a car initially moving at 25 m/s, what distance is required to stop a car moving at 50 m/s under the same condition?(adsbygoogle = window.adsbygoogle || []).push({});

a. 50 m

b. 100 m

c. 200 m

d. 400 m

This is probably a really easy question, but I just can't see how to work it out. I tried to set up a ratio between the distance and velocity and that got me 100 m, but b is incorrect. Can anyone explain the correct method to do this problem and tell me why setting up a ratio between those 2 components is a mistake?

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# Homework Help: Cars, Energy, and Work

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