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April 24, 2014

Homework Help: physics

Posted by katlin on Wednesday, December 5, 2007 at 7:53pm.

An 855 kg dragster accelerates from rest to 120 km/h in 0.90 seconds.

What is the average force exerted on the car?

I used the regular f=ma which is f=855*(120-0/.9) which equalled 114000 but that answer is wrong. I don't know another formula am i supposed to add in the gravity force and things like that??

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