I've been working on this problem for hours and I just can't figure out what to do next! Here it is-(adsbygoogle = window.adsbygoogle || []).push({});

A car drives around a curve with radius 410 m at a speed of 32 m/s. The road is banked at 5.0 degrees. The mass of the car is 1400 kg. What is the frictional force on the car?

I drew the FBD and got net force equations for the x and y directions:

Fxnet: Fsin(theta) = m(vsquared)/r -Nsin(theta)

Fynet: Fcos(theta) = Ncos(theta) - mg

But now I don't know what to do. I know what the correct answer is (back of the book), but I can't figure out how to get there. When I plug in the numbers, it doesn't come out right. Are my net force equations wrong?

Hints? Suggestions? Please!!

Thanks, Heather

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# Homework Help: Banked Curves

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