The force F1= 20 N of the driver foot on the brake pedal moves piston X. The space between
position X and Y is filled with oil which cannot be compressed. The force F2
exerted by the oil
moves piston Y. The area of the crossection of piston X is 4.8 cm2
. Determine the force F2
if the
piston Y has a diameter 4 times the diameter of piston X