A bag of sand weighing 100 N is hanging on the end of a long, light rope. The bag is pulled to one side by a horizontal force so that the rope makes an angle of 250 with the vertical. Find the magnitudes of the horizontal force and the tension in the rope.
The Attempt at a Solution
I know that the horizontal force makes an angle of 1150 to the rope.
I know that the magnitude of the horizontal force + the force on the rope equal 100N.
I'm stuck on which way to go. Some sort of pendulum formula?