(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A roller coaster loop has a radius of 12m. If the passengers in a car are not to fall out at the top of the loop, what is the minimum speed the car must have at the top?

3. The attempt at a solution

Alright I think I got the right answer but I do not completly understand the question.

so what i did was

I went Fc=Fg (but why??)

g is 9.8

mg=mv^2/r

g=v^2/r

v=11

But I dont get why the MINIMUM ac has to be g for them not to fall off.

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# Homework Help: Need Help Quik

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