An object with a mass of 5 kg undergoes a process during which there is heat transfer from the object at a rate of 5 kJ per kg, an elevation decrease of 45 m, and an increase in velocity from 20 m/s to 30 m/s. The specific internal energy decreases by 5 kJ per kg and the acceleration of gravity is constant at 9.8 m / s2. Determine the work for the process, in kJ.