Tangential acceleration - unknown term

AI Thread Summary
The discussion focuses on calculating the tangential component of acceleration for a man walking on a rotating turntable. The relevant equations include radial acceleration as -rw^2 and tangential acceleration as r*alpha. The user seeks clarification on the additional term (2wv) in the tangential acceleration formula. Another participant introduces the concept of Coriolis force, suggesting it may explain the deviation in motion. Understanding the relationship between these concepts is essential for solving the problem accurately.
LCattell
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Homework Statement



A man walks steadily outwards on a turntable (radius r) with radial velocity v. The turntable rotates with angular velocity w and angular acceleration alpha (anti-clockwise). What is the tangential component of acceleration?

Homework Equations



radial acceleration = -rw^2
tangential acceleration = r*alpha

The Attempt at a Solution



The answer given for the tangential acceleration is (r*alpha)+(2wv)
I understand the r*alpha bit, but could someone please enlighten me as to what the 2wv part refers to?

Thanks very much

LC
 
Physics news on Phys.org
Have you learned about Coriolis force?
 
I thought that Coriolis was where an object appeared to deviate from its path. How is it related to this problem?
 

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