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ANALYSIS OF DATMQUESTIDNS: 1. What happens to the kinetic and potential energj.r of the hall as it moves up? Explain this using the concept of the conservation of mechanical energy. 2. What could he the possible sources of error as indicated by the percentage difference between the values of the initial kinetic and nal potential energy' 3. Solve the following problem: Willa": ta Shmm'a speed when he reaches the bottom ofthe initial.r dig 13.15" m betow the starting point? a