here is how the problem looks. 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.