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## Homework Statement

A 76-kg pilot at an air show performs a loop de loop with his plane. At the bottom of the 52-m radius loop, the plane is moving at 48 m/s. Determine the normal force acting upon the pilot.

## Homework Equations

(ƩF)

_{R}= ma

_{R}= m(v

^{2}/r)

## The Attempt at a Solution

I drew a diagram and I know I have to figure it out considering the position of the plane at the bottom of the plane. At the bottom of the plane F

_{R}and F

_{N}are pointing towards the center of the circle while F

_{g}is pointing the opposite direction. Since the pilot has no movement in the y-direction we know:

F

_{R}+ F

_{N}= F

_{g}

After that I tried putting in the values I have but I got F

_{g}'s value was smaller than the total of F

_{R}+ F

_{N}which does not make sense meaning I've made a mistake. I'm confused on how to tackle the problem after this part.