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A jet propelled boat moves at 20 m/s with water being drawn from inlet openings facing the direction of motion.If the relative velocity of the jet is found to be 30 m/s,its propulsion efficiency will be: ?->(Show Answer!)
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1. A jet propelled boat moves at 20 m/s with water being drawn from inlet openings facing the direction of motion.If the relative velocity of the jet is found to be 30 m/s,its propulsion efficiency will be:





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