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

A car is traveling through a valley at a constant speed, though not a constant velocity and (I believe) it is at the bottom. If the car's speed is 25 m/s, its mass is 1200 kg and the radius of the valley (r) is 25 meters, Use your force diagram to create a Fnet=ma equation for the Y-Direction. Then determine the magnitude of the force of the road acting on the car. (i.e. the Force Normal)

2. Relevant equations

m = mass; v = velocity; r = radius

Fnet=(mv^{2})/r

3. The attempt at a solution

So I know the force body diagram. Fn (Normal Force) is greater than Fg (gravity).

Then when I continue to work with the equation I can come up with

Fg - Fn = (mv^{2})/r which then becomes

Fn = Fg - (mv^{2})/r

However after this step I don't know what to plug in or even how to solve for the numbers that need to be plugged in. Well gravity will be 11760 N but after that I am lost.

Thanks!

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# Homework Help: Radial Net Force/Circular Motion Valley Question

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