Engineering Mechanics - DynamicsChapter 15*Problem 15-36Two men Aand B, each having weight Wm, stand on the cart of weight Wc. Each runs with speed vmeasured relative to the cart. Determine the final speed of the cart if (a) Aruns and jumps off, thenBruns and jumps off the same end, and (b) both run at the same time and jump off at the same time.Neglect the mass of the wheels and assume the jumps are made horizontally.Given:Wm160 lb=Wc200 lb=v3fts=g32.2fts2=Solution:mmWmg=mcWcg=(a) Ajumps first 0mm−vvc−()mmmc+vc1+=vc1mmvmc2mm+=vc10.923fts=And then B jumpsmmmc+vc1mm−c2−mcvc2+=vc2mmvmmmc+vc1+mmmc+=vc22.26fts=(b) Both men jump at the same time
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