An 82 Kg pilot is flying a stunt airplane pulls out of a dive at a constant speed of 540 km/h. What force is applied on the pilot by the plane seat at the lowest point in the pullout?

Question

An 82 Kg pilot is flying a stunt airplane pulls out of a dive at a constant speed of  540 km/h. What force is applied on the pilot by the plane seat at the lowest point in the pullout?

nottim · Answer

Minimum radius is 3.3*10^2m.
The answer is 6.4*10^3 N.

nottim · Answer

My initial answer was 5590.909090...N.

anonymous · Answer

So what is the formula for centripetal force?

nottim · Answer

Fc=mv^2/r

anonymous · Answer

And since he is at the bottom of the circle, the centripetal force is in the same direction as the force of gravity.  So they are both just added, right?

anonymous · Answer

So  $\Large F_{net} = m\frac{v^2}{r}+ma_{gravity}$
We have $m, v, r, a_{gravity}$ right?  So does this get you the correct answer?

nottim · Answer

lemme try this one out first. thx for the help and immediate response

nottim · Answer

is gravity suppose to be negative?

nottim · Answer

@wio