A railroad car moves under a grain elevator at a constant speed of 3.20m/s. Grain drops into
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A railroad car moves under a grain elevator at a constant speed of 3.20m/s. Grain drops into the car at the rate of 540 kg/min. What is the magnitude of the force needed to keep the car moving at constant speed if friction is negligible?
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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