The figure below shows a fisherman in a rowboat on a lake. The fisherman's mass is 78 kg, and the rowboat's is 122 kg. The fisherman and rowboat are initially at rest when the fisherman throws a package of mass  m = 15 kg  horizontally to the right with a speed of  vi = 4.9 m/s.  What is the velocity of the rowboat after the package is thrown? Neglect any resistance force from the water

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Q: An overnight rainstorm has caused a major roadblock. Three massive rocks of mass m₁ = 514 kg, m₂ =…

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