Answered: what is its speed at time t? | bartleby

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1. A hose sprays water into a train car. The hose is fixed in place and directed along the tracks,
and the train car can move along the tracks without friction. The hose sprays water at a fixed
rate a ([a] =MT-1) and speed v; the mass of the empty car is M. If the train car starts empty
and at rest at t = 0, what is its speed at time t?

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