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Introductory Physics Homework Help
Block attached to spring - calculate how far it will move
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[QUOTE="jcjc16, post: 4417674, member: 480859"] [h2]Homework Statement [/h2] A spring with spring constant 200 N/m is suspended vertically with its upper end fixed to the ceiling and its lower end at position y = 0. A block of weight 20 N is attached to the lower end, held still for a moment, and then released. How far will the block move before coming momentarily to a stop?[h2]Homework Equations[/h2] mg = -kx mg = 0.5kx^2[h2]The Attempt at a Solution[/h2] I tried using the first equation and got x = 0.1m as my ans. which was wrong. I then tried using the second equation instead and still got an incorrect answer. Where am I going wrong? The ans. is 0.2 m. Thanks in advance! [/QUOTE]
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Block attached to spring - calculate how far it will move
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