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Suppose the point where an external force on a system acts moves 10 cm in the +???? direction. The force always points in the +???? direction and grows in magnitude from 0 to 100 N during the displacement. a) Estimate the work the interaction exerting this force does on the system by dividing the process into 10 equal displacements, calculating ???????????? = ????????? ? ???????????? for each step, and adding the results. (Note: Calculate the magnitude of ????????? at the midpoint of each step.) b) Compare to the exact result of 5.0 J, which one can calculate using calculus. Are you close