MEEN 315-201: Spring 2021 Exam 1 PART II (03 Workout Questions Q1, Q2, Q3) Q1. (20 points) The suspension system of a freight truck can be modeled as a single, smooth piston cylinder arrangement containing a fixed mass of air. The mass of the piston can be considered as the mass of the empty truck. The effective cross-sectional area of the piston is 0.5 m. When the truck is empty, a pressure gage connected to the cylinder reads a gage pressure of 120 kPa. The atmospheric pressure at the location is 101 kPa and the acceleration due to gravity, g = 9.81 m/s. Determine the mass of the empty truck in kg. The truck is then loaded with a batch of cargo. When the piston reaches the new equilibrium position, the pressure gage reads page of 280 kPa. Determine the mass of cargo loaded to the truck in kg.