# Downward force of the plane problem

#### aaronb

1. Homework Statement
why does a pilot tend to black out when pulling out of a steep dive?

2. Homework Equations
Newton's 2nd and 3rd laws

3. The Attempt at a Solution
I think the pilot passes out because the downward force of the plane pushes all the blood away from his brain and causes him to pass out.

I read the rules of this forum so I don't expect an answer. But please push me in the right direction because I know I am forgetting something.

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#### LowlyPion

Homework Helper
Re: Forces

I think the pilot passes out because the downward force of the plane pushes all the blood away from his brain and causes him to pass out.
Almost. But I don't think the plane is pushing down. What forces are associated with circular motion, because it's the pulling out of a dive, you know a radius and a high speed, as the pilots say "pulling G's". How is that force directed may be more to your interest?

#### tiny-tim

Homework Helper
why does a pilot tend to black out when pulling out of a steep dive?

2. Homework Equations
Newton's 2nd and 3rd laws
Hi aaronb!

I think it's more Newton's first law …

if you bounce off a trampoline, what does your blood "want" to do?

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