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What is the minimum mass of the barbell without tipping?
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[QUOTE="Luke0034, post: 5625259, member: 607269"] [h2]Homework Statement [/h2] Typical weight sets used for bodybuilding consist of disk-shaped weights with holes in the center that can slide onto 2.20 m long barbells. A barbell is supported by racks located a fifth of its length from each end, as shown in the figure. What is the minimum mass m of the barbell if a bodybuilder is to slide a weight with = 22.0 kg onto the end without the barbell tipping off the rack? Assume that the barbell is a uniform rod. [h2]Homework Equations[/h2] sum of all torques = 0 [h2]The Attempt at a Solution[/h2] I tried to make the the intersection of the barbell and the left rack the pivot point. Then I found the torque of the weight, the center of mass of the bar, and then the 2nd rack, but I came out with the wrong answer. I think I'm on the right track on how to do it, but I'm not sure where I'm messing up. Explanation would be helpful... studying for an upcoming test. Thanks! [/QUOTE]
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Introductory Physics Homework Help
What is the minimum mass of the barbell without tipping?
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