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http://i39.tinypic.com/2d0j4wg.png

a pullstring walker is in the middle of a string that is connected to two mountain sides. the string formes an angle of 10 degrees under the horizontal. the walker has a mass of 50 KG. find the tension of the string

any idea how to start with this one.if i set up newton 2nd law i get FG-FT+FT= 0

which is useless because FT will cancel out.