Show your work wherever possible. Record all answers with THREE DIGITS. OPROBLEMS 1 In the diagram shown, each barrel has a mass of 15.2kg. The angle 0 = 145°. a. Draw a free body diagram for a system that includes only the lower barrel. b. Draw a free body diagram for a system that includes only the upper barrel. c. Draw a free body diagram for a system that includes both barrels. d. Determine the magnitude of the force that force that the bottom barrel exerts on the top barrel. (Hint: which free body diagram above is the easiest to use to determine this?) e. Determine the magnitude of the force that the ground exerts on the bottom barrel. (Hint: which free body diagram above is the easiest to use to determine this?) OANSWERS 1 d. 260N; e. 298N ↑; 2 c. 53.9N; d. 27.0N; e. 53.9N; f. 37.4N; g. 17.5m/s² ↑; 3 4| both the same 5 the one block system on the right 6 a. 122N; b. 245N; c. 35.4kg; d. 9.57kg; e. 100kg

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