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April 18, 2015

April 18, 2015

Posted by **ashaly** on Wednesday, September 26, 2012 at 7:33pm.

a.if the car is going 55m/s,how many meters will it travel beofre it stops?

b.how many metes will it take to stop a car going twice as fast?

- physics -
**Scott**, Wednesday, September 26, 2012 at 8:13pmit takes 5 s to stop the car __ 55 / 11

the average speed (Va) is __ (55 + 0) / 2

the stopping distance is __ Va * 5

twice as fast means that the stopping time is doubled, along with the average speed

__ this means that the car travels 4 times as far

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