\"The wheels of a certain roller coaster are both above and below the rails as s

Question

"The wheels of a certain roller coaster are both above and below the rails as shown in the figure so that the car will not leave the rails. The mass supported by this particular wheel is 336 kg and the radius of this section of track is 11 m. The acceleration of gravity is 9.8 m/s2 .
What is the magnitude of the force that the track exerts on the wheel when the speed of the car is 68 m/s? Answer in units of N"
What would be the net force exerted on a 95 kg person riding in the car?
Answer in units of N

I got that first part of the question. Now to find the net force do I just add 95 to the mass I used before?

Explanation / Answer

No, Instead of mass m = 336 kg , use m = 95 kg

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