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A railroad hopper car has mass 50000 kg when empty and contains 50000 kg of coal. As it coasts along the track at 10 m/s the hopper opens and steadily releases all the coal onto a platform below the rails over a period of 4 s.
How fast does the car travel after all the coal is dumped?
i applied the mv(initial) = mv (final) equation...
i got something like
(100000 kg) (10m/s) = (50000 kg) V final
apparently it's incorrect, any hints?
How fast does the car travel after all the coal is dumped?
i applied the mv(initial) = mv (final) equation...
i got something like
(100000 kg) (10m/s) = (50000 kg) V final
apparently it's incorrect, any hints?