String and accleration

  • #1
Another Problem

A watch is tied to a string on an airplane. As the airplane takes off the string makes an angle of 25* to the vertical. The accleration takes about 18s. What is the accleration of the plane.

I drew a free body diagram, but I am confused as to how I would solve this without knowing the mass of the watch or the tension of the string.
 

Answers and Replies

  • #2
Doc Al
Mentor
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Just call the tension T and the mass m and solve for the acceleration.
 

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