Problem with Coriolis Acceleration

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Homework Help Overview

The problem involves calculating the magnitude of Coriolis acceleration for a plane flying at a specific speed and location, considering the Earth's rotation. The subject area pertains to dynamics and rotational motion within the context of physics.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the values for the Earth's rotation rate and the velocity of the plane, questioning the appropriateness of the given parameters and their representations as vectors.

Discussion Status

Some participants have provided values for the rotation rate and velocity, while others have noted the need for clarity regarding vector notation. There is an ongoing exploration of the significance of significant figures in the context of the problem.

Contextual Notes

There is mention of the requirement to show work for homework problems, and some uncertainty exists regarding the accuracy of the "600 mph" parameter in terms of significant figures.

dennis wang
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Homework Statement


Find the magnitude in g's of the Coriolis acceleration due to the Earth's rotation of a plane flying 600 mph due north over the location of latitude (37˚13'04"N), longitude (121˚50'39"W), at an elevation of 80 meters above mean sea level.

Homework Equations


aCor = 2Ω × vxy

The Attempt at a Solution


n/a
 
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On homework problems, you will have to show some work to get help. What values or calculations can you give for ##\Omega## and ##v_{xy}##?
 
FactChecker said:
On homework problems, you will have to show some work to get help. What values or calculations can you give for ##\Omega## and ##v_{xy}##?

##\Omega## = Earth's rotation=0.0000727
##v_{xy}## = 268.22 m/s
 
dennis wang said:
##\Omega## = Earth's rotation=0.0000727
##v_{xy}## = 268.22 m/s
Sorry, these are vectors. I should have used a notation that made that clear. The better representation is
##\vec a_{Cor} = 2\vec \Omega \times \vec v##
(I'm not sure right now what your xy subscript is for)
 
dennis wang said:
##\Omega## = Earth's rotation=0.0000727
When using three significant figures, the relevant rotation rate in radians per second would relate to the sidereal day, not to the solar day.

[Though it is not clear that the "600 mph" parameter is good to three significant figures]
 

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