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## Homework Statement

A Physics student wishes to measure the maximum horizontal acceleration of an aircraft as it accelerates down the runway. To do this the student measures the angle that a weight on a string is deflected from the vertical direction when the plane accelerates (see diagram). If the weight is deflected by a maximum of 14.0° from the vertical what is the maximum acceleration of the plane?

[PLAIN]http://img26.imageshack.us/img26/6634/figurec.gif [Broken]

The correct answer is

**2.44**.

## The Attempt at a Solution

The only data I'm given is the angle! I don't know at all how to approach this problem... any guidance is very appreciated.

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