equilibrium problem

[ratt10mm]

.3m>>>>>| .075m
---------------
|>>>>>15m<<|>>.05m
A>>>>>>>-------------
>>.175m>>|.05m>>>>>|
>>------------>>>>>>B
>>|>>>>>>>>>|
>>D>>>>>>>>>C

( > are spaces and - are the crossbars.)
Alright pretend this is a mobile in equilibrium. I'm given that object B is .735kg and i need to determine the masses of the other ojects....

[arcnets]

Hi ratt10mm,
15m looks wrong, isn't it rather .15m?

Anyway, you know the law of leverage, plus you know that B must be balanced against C+D. That's where to start, I think.

[frankR]

What the heck?[?]