The drawing shows a hydraulic system used with disc

Chapter , Problem 39

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The drawing shows a hydraulic system used with disc brakes. The force F B is applied perpendicularly to the brake pedal. The pedal rotates about the axis shown in the drawing and causes a force to be applied perpendicularly to the input piston (radius 5 9.50 3 1023 m) in the master cylinder. The resulting pressure is transmitted by the brake fl uid to the output plungers (radii 5 1.90 3 1022 m), which are covered with the brake linings. The linings are pressed against both sides of a disc attached to the rotating wheel. Suppose that the magnitude of F B is 9.00 N. Assume that the input piston and the output plungers are at the same vertical level, and fi nd the force applied to each side of the rotating disc.