Simple Pendulum Centripetal Acceleration

Thread starter robwashere
Start date Apr 29, 2012
Tags

Acceleration Centripetal Centripetal acceleration Pendulum Simple pendulum

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.

Apr 29, 2012

robwashere

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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Apr 29, 2012

Doc Al

Mentor

Hint: Apply Newton's 2nd law.

Apr 29, 2012

robwashere

Doc Al said:

Hint: Apply Newton's 2nd law.

You sir, are a genius! Thanks!

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