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## Homework Statement

I have this exercise which says: An airplane moves along a circular path of 150 meters radius, contained in a vertical plane with constant speed module 200km / h.

a)Determine the force resulting from the interaction between the seat and the pilot, whose mass is 80kg, at the lowest point of the trajectory.

Determine the force that results from the interaction between the seat and the pilot at the highest point, that is, when the pilot is in inverted position.

Well, for the first part I've used the normal acceleration:

a)[tex]a_n=\displaystyle\frac{v^2}{\rho}=\displaystyle\frac{55.5^2}{150}=20.57m/s^2[/tex]

Then: [tex]F=ma_n=80kg20.57m/s^2=1645.6N[/tex]

b)Now this is what I did, I'm not sure about this, and it makes me doubt about the steps I've made before.

[tex]mg+F=ma_n \therefore{F=m(g-a_n)=861,6N}[/tex]

Is this right?

Bye there, thanks for posting.

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