Mathematics, 23.05.2021 20:40 mayamabjishovrvq9

a crane lifts a 450 kg concrete to the top of a 50 m building in 5 s. assuming g=10 m/s² calculate a) the potential energy of the concrete B):- the power developed by the crane

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Mathematics, 21.06.2019 21:00

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a crane lifts a 450 kg concrete to the top of a 50 m building in 5 s. assuming g=10 m/s² calculate a...

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