Chapter 5, Problem 5/137 A cable weighing 18 newtons per meter of length is suspended from point A and passes over the small pulley at B. Calculate the mass m of the attached cylinder which will produce the sag of 7.4 m. Also determine the horizontal distance from A to C. (a) Use the approximation of a parabolic cable. (b) Use the exact equations A Answers: (a) Using parabolic approximation m- (b) Using exact equations m- 108 m B 10.2 m C 7.4 m kg. AC- m KQ, AC - m 722