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

A simple pendulum has a mass of 0.25 kg and a length of 1.0 m. It is displaced through an angle of 5.0° and then released.

1. What is the maximum speed?

2. What is the maximum angular acceleration?

Answer: 0.855 rad/s^{2}

3. What is the maximum restoring force?

Answer: 0.214 N

2. The attempt at a solution:

I got numbers 2 and 3 right, but I can't figure out number 1.

Here's my attempt:

m*g*L*sin [tex]\theta[/tex] = 1/2 *m*v^{2}

(0.250)*(9.81)*(1.0)*(sin 5) = 1/2 * (0.250)*v^{2}

0.124 = (0.125)v^{2}

v^{2}= 1.712 = 1.31 m/s

It is incorrect. Can someone please help me as to where I went wrong?

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# Homework Help: Simple Pendulum - Maximum Speed

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