A pump delivers oil at a rate of 20 gpm to the blank end of a 2-in.-diameEer hydraulic cylinder as shown in Fig. 7-8. the piston contains a 3/4-in.-diametercush ion plunger that is .I in. long. The cylinder drives a 1000-n) load, which slides on a Hal horizontal surface having a coefficient of friction equal to 0.15. The pump pressure relief valve selling equals 500 psi. Find the maximum pressure developed by the cushion.
