Help, homework simple confusing question

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Homework Help Overview

The problem involves a pilot performing a vertical dive and determining the altitude needed to pull out of the dive safely, considering the acceleration limits the pilot can withstand. The subject area relates to dynamics and acceleration in physics.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the appropriate equations to use, with one suggesting a kinematic equation while another proposes considering centripetal acceleration. Questions arise regarding the total acceleration experienced by the pilot and the implications of pulling out of the dive.

Discussion Status

The discussion is active, with participants exploring different interpretations of the problem and questioning the assumptions behind the chosen equations. There is no explicit consensus on the approach, but various lines of reasoning are being examined.

Contextual Notes

Participants note confusion regarding the total acceleration and its relation to gravitational acceleration, indicating a need for clarification on these concepts. The problem's setup and the pilot's maneuver are also under scrutiny.

darewen
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Homework Statement


A pilot performs an evasive maneuver by diving vertically at 310 .If he can withstand an acceleration of 9.0 's without blacking out, at what altitude must he begin to pull out of the dive to avoid crashing into the sea?
 
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You need to show some of your thoughts on this. What equation might be useful here?
 
Yea, sure,
I think the only equation we should use is
2*a*s=Vt^2-V0^2
so it is not hard, but the question is , what's the total accelration of it, is it 9*g or is it 8*g, i am saying ,no matter what i tried, just don't match with the answer.
Thanks.
 
Why would you pick that equation? I would think this is a centripetal acceleration problem. It says the pilot pulls out of the dive, it doesn't say he stops in midair! If he starts to trace out a circle as he pulls up (at the speed and acceleration given), what is the maximum radius that circle can be so he doesn't run into the water?
 

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