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A person lifts a weight lifting bar from the ground to their chest in 2 seconds.They hold it for 3 seconds and then lift the
A person lifts a weight lifting bar from the ground to their chest in 2 seconds.They hold it for 3 seconds and then lift the bar above their head in 2 seconds.When is work being done on the bar? A person lifts a weight lifting bar from the ground to their chest in 2 seconds.They hold it for 3 seconds and then lift the bar above their head in 2 seconds.When is work being done on the bar? when the bar is lifted off the ground and above the chest when the bar is lifted off the ground and held at the chest when the bar is lifted off the ground when the bar is lifted above the chest
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