MAE208_HW4soln

MAE208_HW4soln - Problem 14-3: First, we need the normal...

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Unformatted text preview: Problem 14-3: First, we need the normal force: N mg F sin 30o 20 9.81 100sin 30o N 146.2 N Now, use principle of work and energy: F y ma y m 0 N F sin 30o mg T U 1 1 2 T2 1 2 1 2 mv1 F s cos 30 N s mv2 2 2 1 1 2 20 82 100 25 4 cos 30 0.25 146.2 25 4 20v2 2 2 v2 13 m/s ...
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