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- Homework Statement
- During the Physics Field Trip to Six Flags, Skyler and Jayson experienced a looping roller coaster ride for the first time. Their 656-kg roller coaster car was moving at 15.8 m/s at the top of the loop where occupants experienced a normal force equivalent to 1/4-th their weight. Determine the radius of curvature of the loop.

- Relevant Equations
- So I tried using F = mv^2/r, and f =mg to cancel mass but it didn't work, also its confusing which forces are supposed to be used?

Fnet would otherwise be 4281N, after subtracting 1/4 of rollercoaster's weight?

Could someone please help me solve this?