1. In a hydraulic lift, if you exert a downward force of 100 N on a piston with an area of 1 m^3, how much upward force would be exerted on a piston with an area of 20 m^3?

2. What would be the absolute pressure at a depth of 2 m in a swimming pool? (Density of water is 1000 kg/m^3, density of air is 1 kg/m^3, use 10.0 m/s^2 for acceleration of gravity)
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Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.