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

An accelerometer—a device to measure acceleration—can be as simple as a small pendulum hanging in the cockpit. Suppose you are flying a small plane in a straight, horizontal line and your accelerometer hangs 12° behind the vertical, as shown in the figure. What is the magnitude of your acceleration at that time?

2. Relevant equations

Thought SumF = ma, but I have no idea.

3. The attempt at a solution

Ok so I did the FBD for this, but I really have no idea how to go about this. I've tried angular acceleration formulas, etc, but the answer has been wrong. I've been working on Physics HW now for 4 hours and this is the final one, but I really have no idea how to go about this.

http://img87.imageshack.us/img87/1759/fbdam1.jpg [Broken]

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# Homework Help: Using the angle of a pendulum to measure the acceleration of a plane.

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