(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 2.0 M long pendulum released from rest with the support string at an angle of 25 degrees with the vertical. What is the speed of the bob at the bottom of the string?

2. Relevant equations

PE = mgy

KE = 1/2mv^2

Trig functions

3. The attempt at a solution

I just need help getting the problem started, in the potential energy formula, we have two unknowns(unless the 2.0 m has to do with the location of the bob, but i am not certain).

Thanks in advance :]

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# Homework Help: Speed of a Pendulum

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