(Solution) - Figure shows three forces applied to a trunk that moves -(2025 Original AI-Free Solution)

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Figure shows three forces applied to a trunk that moves leftward by 3.00 m over a frictionless floor. The force magnitudes ate F1 = 5.00N, F2 = 9.00N, and F3 = 3.00 N, and the indicated angle is ? = 60.0o. During the displacement,
(a) What is the net work done on the trunk by the three forces an
(b) Does the kinetic energy of the trunk increase or decrease?