Question: III. Solving problems using energy bar charts. Using the method delineated in this tutorial, solve the following problems. A. Mary's 40 kg brother is at

III. Solving problems using energy bar charts. Using the method delineated

III. Solving problems using energy bar charts. Using the method delineated in this tutorial, solve the following problems. A. Mary's 40 kg brother is at rest on a swing 0.50 m off the ground. Initial and final situation + forces She pulls him up until he is 2.0 m off the ground and releases him. How fast is her brother moving after he passes the bottom and has gone up to 1.5 m off the ground? KEi Ugi Usi Wother AEth KEr Ugr Usr B. A car moving at an initial speed w applies its brakes and skids for some distance until coming to a complete stop. If the coefficient of kinetic friction between tires and the road is / what distance did the car skid? Initial and final situation + forces KE Ug Usi Wother AEth KEr Ugr Usr

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