In figure, a spring of spring constant 3.75×10' N/mis between rigid beam and the output piston of a hydraulic lever. An empty container with negligible mass sits on the input piston. The input piston has area 4, and the output piston has area 18.04. Initially the spring is at its rest length. How many Kilo grams of sand must be (slowly) poured into the container to compress the spring by 5.00 cm?
