1. The problem statement, all variables and given/known data 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. 3. 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.