Q

- experimentX

Q

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- experimentX

|dw:1350223048970:dw|

- experimentX

|dw:1350223094711:dw|

- experimentX

|dw:1350223141650:dw||dw:1350223162295:dw|

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## More answers

- anonymous

Hmm.. So.. *strength* <- how to calculate that??

- experimentX

in case of platform
|dw:1350223305158:dw|

- experimentX

|dw:1350223350144:dw|

- anonymous

What about the platform? Something ugly is that the platform is something you need to balance but it also provides support to you!

- experimentX

|dw:1350223607516:dw|

- experimentX

assuming that case II in not our case.

- experimentX

|dw:1350223731501:dw|

- anonymous

|dw:1350223745248:dw|

- experimentX

|dw:1350224941551:dw|

- anonymous

Why is the tension opposite?

- experimentX

think of this in this way ... suppose platform is broken ... |dw:1350225254972:dw| how do you balance this?

- anonymous

T1 + T2 = W1+W2
F = T2
Hmm, probably it's wrong.

- experimentX

yes that that's right ... |dw:1350225421414:dw|

- anonymous

Huh?! Seriously?! That's..... *right* ?!

- experimentX

yep ... but your are seeking more trouble!!

- anonymous

How can I reduce those trouble if they are really that troublesome :|

- experimentX

... well ... if you take up trouble then you will understand more. give it a try.

- anonymous

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

suppose ... the weight of platform is less than weight of person.

- experimentX

I'll give you simple Q.|dw:1350226233525:dw|

- anonymous

10N - 5N = 5N (downwards)?

- experimentX

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.

- anonymous

F-T1 ?
That looks strange!

- experimentX

|dw:1350226496018:dw|

- experimentX

both tension and weight is a force ... so you can add them up.

- experimentX

|dw:1350226590287:dw|

- experimentX

|dw:1350228019586:dw|

- anonymous

|dw:1350228159702:dw|

- experimentX

sorry ... I forgot to highlight it .

- anonymous

It's my mistake. I'm just too stupid! Sorry!

- experimentX

partly my fault too ... I don't elaborate ... usually use figures ... so I should have highlighted.

- experimentX

so do you get it?

- anonymous

98%

- experimentX

what is the max force that you can apply ... refer to the first post!!

- anonymous

Your weight!

- experimentX

so you have|dw:1350228670243:dw|

- anonymous

W1

- experimentX

yep ... that's correct ... we arrived at the conclusion what we did without any trouble.

- anonymous

Trouble trouble trouble!

- experimentX

well ... I hope you understood it better.

- anonymous

If I don't understand ... I will ask!

- experimentX

sure ... sometimes troubles are worth taking. It gives insight on problem.

- anonymous

Only if I know that ''insight''..

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