How Do You Calculate Centripetal Acceleration for Earth Movements?

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To calculate centripetal acceleration for an object on the equator due to Earth's rotation, the formula a_c = v^2 / r is used, where v is the tangential velocity and r is the radius of the Earth. For the orbital motion around the sun, centripetal acceleration can similarly be calculated using the same formula, considering the radius of the Earth's orbit and its orbital velocity. The discussion highlights confusion over the term "module" and emphasizes the need for clarity in definitions and formulas. The equation T = 2π / v is mentioned, but its relevance to centripetal acceleration needs further explanation. Understanding these calculations is crucial for accurately determining the forces involved in both types of motion.
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Homework Statement



1) Calculate the module of the centripetal acceleration of an object located on the equator for its movement linked to the rotation of the Earth on itself.

2) Calculate the module of centripetal acceleration by its orbit around the sun (if we consider it's orbit as circular).


Homework Equations



T=2 pi / v ?

The Attempt at a Solution



T=2 pi / v :(
 
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Look up the formula for centripetal acceleration.
 
huh?
 
What be a "module" in your context?
 
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