Gravity is given by g = 9.81 - 3.32 X 10-6 h m/s2, where h is the height above sea level. An airplane is travelling at 900 km/h at an elevation of 10 km. If its weight at sea level is 40 kN, determine (a) its kinetic energy and (b) its potential energy relative to sea level. Draw a figure of it.
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