Physics, 20.04.2021 21:20 arianawelsh123l

Pablo prepares to lift a barbell. During which stage of the lift does Pablo do work on the barbell? when he holds the barbell up above his head
when he applies force to the barbell but has not moved it
when he lifts the barbell from the floor to his chest
when he lets go of the barbell and allows it fall to the ground

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Pablo prepares to lift a barbell. During which stage of the lift does Pablo do work on the barbell?...

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