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When an athlete holds a barbell overhead, the reaction force is the weight of the barbell on his hand. how does this force vary for the case where the barbell is decelerated upward?

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Etta217
The force applied by the competitor is littler than the heaviness of the barbell. At the point when the barbell quickens upward, the power applied by the competitor is more prominent than the heaviness of the barbell. When it decelerates upward, the power applied by the competitor is littler than the heaviness of the barbell.

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