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experimentX
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|dw:1350223048970:dw|
experimentX
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|dw:1350223094711:dw|
experimentX
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|dw:1350223141650:dw||dw:1350223162295:dw|
RolyPoly
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Hmm.. So.. *strength* <- how to calculate that??
experimentX
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in case of platform
|dw:1350223305158:dw|
experimentX
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|dw:1350223350144:dw|
RolyPoly
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What about the platform? Something ugly is that the platform is something you need to balance but it also provides support to you!
experimentX
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|dw:1350223607516:dw|
experimentX
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assuming that case II in not our case.
experimentX
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|dw:1350223731501:dw|
RolyPoly
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|dw:1350223745248:dw|
experimentX
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|dw:1350224941551:dw|
RolyPoly
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Why is the tension opposite?
experimentX
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think of this in this way ... suppose platform is broken ... |dw:1350225254972:dw| how do you balance this?
RolyPoly
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T1 + T2 = W1+W2
F = T2
Hmm, probably it's wrong.
experimentX
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yes that that's right ... |dw:1350225421414:dw|
RolyPoly
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Huh?! Seriously?! That's..... *right* ?!
experimentX
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yep ... but your are seeking more trouble!!
RolyPoly
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How can I reduce those trouble if they are really that troublesome :|
experimentX
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... well ... if you take up trouble then you will understand more. give it a try.
RolyPoly
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T1 + T2 = W1+W2
F = T2
So, T1 + F = W1 + W2
For max F, F = W1
And .. it cancels out...
T1 = W2
What's wrong with me!!
experimentX
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suppose ... the weight of platform is less than weight of person.
experimentX
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I'll give you simple Q.|dw:1350226233525:dw|
RolyPoly
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10N - 5N = 5N (downwards)?
experimentX
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yep ... you have to apply the same case here.
The person is pulling the string down <-- the person is being pulled up
you need to split the weight of person.
RolyPoly
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F-T1 ?
That looks strange!
experimentX
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|dw:1350226496018:dw|
experimentX
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both tension and weight is a force ... so you can add them up.
experimentX
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|dw:1350226590287:dw|
experimentX
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|dw:1350228019586:dw|
RolyPoly
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|dw:1350228159702:dw|
experimentX
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sorry ... I forgot to highlight it .
RolyPoly
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It's my mistake. I'm just too stupid! Sorry!
experimentX
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partly my fault too ... I don't elaborate ... usually use figures ... so I should have highlighted.
experimentX
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so do you get it?
RolyPoly
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98%
experimentX
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what is the max force that you can apply ... refer to the first post!!
RolyPoly
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Your weight!
experimentX
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so you have|dw:1350228670243:dw|
RolyPoly
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W1
experimentX
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yep ... that's correct ... we arrived at the conclusion what we did without any trouble.
RolyPoly
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Trouble trouble trouble!
experimentX
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well ... I hope you understood it better.
RolyPoly
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If I don't understand ... I will ask!
experimentX
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sure ... sometimes troubles are worth taking. It gives insight on problem.
RolyPoly
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Only if I know that ''insight''..