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springo
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Homework Statement
http://img187.imageshack.us/img187/9476/dib.th.png
mA = 22kg
mA = 10kg
No friction
At t = 0, at rest
a.- Find aB
b.- Find vB/A at t = 0.5s
Homework Equations
The Attempt at a Solution
http://img504.imageshack.us/img504/3786/dib3.th.png http://img504.imageshack.us/img504/9979/dib2.th.png
I got to the following equations:
mA·aA = mA·g·cos(30) + NB·sin(50)
0 = NA - mA·g·sin(30) - NB·cos(50)
mB·aA·sin(30) = NB - mB·g·cos(20)
mB·aB/A - mB·aA·cos(50) = mB·g·sin(20)
There must be something wrong in these because after solving my results are wrong.
I don't know if I chose the wright base for studying each body (maybe the equations would be simpler with some other base?).
Thanks for your help!
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