Simple Pendulum Centripetal Acceleration

AI Thread Summary
The discussion revolves around calculating centripetal acceleration for a simple pendulum, with the relevant equations being centripetal acceleration = v^2/r, potential energy (PE) = mgh, and kinetic energy (KE) = 0.5mv^2. A participant attempted to find velocity using kinetic energy but encountered difficulties. They received a hint to apply Newton's second law for a clearer solution. The exchange highlights the importance of understanding the relationship between forces and motion in pendulum dynamics. The conversation emphasizes problem-solving strategies in physics.
robwashere
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Homework Statement


http://screensnapr.com/v/tC6gC3.jpg


Homework Equations


Im guessing: Centripetal Acceleration = v^2/r
PE = mgh
KE = .5mv^2

The Attempt at a Solution


I tried to convert the givens into velocity by using .5mv^2, but that does not work.
 
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Hint: Apply Newton's 2nd law.
 
Doc Al said:
Hint: Apply Newton's 2nd law.

You sir, are a genius! Thanks!
 
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