Question: Please need answer asap 4. Here is a simple variable-mass problem. Consider a person in a cart (combined mass of 500 kg) where the person

Please need answer asap

4. Here is a simple variable-mass problem. Consider a person in a cart (combined mass of 500 kg) where the person is holding a 150-kg lump of coal. He throws the coal behind the cart at a velocity of -10 m/s relative to the stationary cart, launching the cart forward on a frictionless track. Determine the cart's velocity after the coal has been ejected from the back

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