Here is a problem from my book:(adsbygoogle = window.adsbygoogle || []).push({});

If a car rolls gently (initial velocity = 0) off a vertical cliff, how long does it take to reach 90km/h?

It seems easy, and I have been breezing through all teh other ones like it's my job, but for some reason this one gets me. I knwo it's possible, but I jsut don't know how. The answer is supposed to be 2.6 seconds, but I somehow always wind up dividing 90 by 9.8. Any help?

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# Homework Help: Time at given speed in freefall

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