newtonian mechanics - When we do pull-ups, does the bar takes more weight than when we hang down on the bar? - Physics Stack Exchange

When I do pull-ups, I feel I push down to the bar. But does the bar really take more weight than just hang down? For people who don't know pull-ups and hang down, here is an illustration. Left: H

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newtonian mechanics - How do towels stay on hooks? - Physics Stack Exchange

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newtonian mechanics - Is it really the Tension in the rope that pulls the pulley? - Physics Stack Exchange

newtonian mechanics - Why can you lift more weight with bad form? - Physics Stack Exchange

Solved 1 physics problem please help, and show steps so i