Coriolis force canceling out gravity

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SUMMARY

Arne seeks to determine the speed and direction required to move in Leuven (54°N) such that the vertical component of the Coriolis force cancels out gravitational force. To achieve this, one must establish a coordinate system with x as East, y as North, and z as vertical. The Coriolis force can be calculated using the velocity and Earth's rotation rate, specifically focusing on how the velocity components contribute to the vertical force. The discussion emphasizes the need for precise calculations to find the necessary speed and direction.

PREREQUISITES
  • Understanding of Coriolis force and its relation to Earth's rotation
  • Knowledge of vector components in a coordinate system
  • Familiarity with gravitational force calculations
  • Basic physics principles regarding motion and forces
NEXT STEPS
  • Calculate the Coriolis force using the formula: F_c = 2 * m * v * Ω, where m is mass, v is velocity, and Ω is the Earth's angular velocity.
  • Explore the relationship between velocity components and the vertical component of the Coriolis force.
  • Research the effects of latitude on the Coriolis force, particularly at 54°N.
  • Investigate gravitational force calculations to compare with the Coriolis force in this context.
USEFUL FOR

Physics students, engineers, and anyone interested in dynamics related to Earth's rotation and forces acting on moving bodies.

arnesmeets
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Arne wants to move in Leuven (54°N) with such a high speed that the vertical component of the Coriolis force cancels out the gravitational force. In which direction should he move to keep his speed as small as possible? How big is this speed? How big is the horizontal component of the Coriolis force?

I don't have a clue how to get started on this
 
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arnesmeets said:
Arne wants to move in Leuven (54°N) with such a high speed that the vertical component of the Coriolis force cancels out the gravitational force. In which direction should he move to keep his speed as small as possible? How big is this speed? How big is the horizontal component of the Coriolis force?

I don't have a clue how to get started on this
Do you know what the Coriolis force is, and how it is related to the rotation of the earth? Set up a coordinate system at Leuven with perhaps x to the East and y to the North and z vertical (a typcial choice) and express the relevant vectors in this coordinate system. Calculate the Coriolis force in terms of the velocity and rotation rate and find out which components of velocity contribute to the vertical component of force. Take it from there.
 

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