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skull petrol
skull petrol
23:00
Where are you getting this factor of 2 from?
0celo7
0celo7
the string is doubled up on A!
am I going insane?
@ACuriousMind ?
skull petrol
skull petrol
If A moves 1 inch how far does B move?
0celo7
0celo7
2
if A moves 1 inch it "uses up" 2 inches of string
so B is pulled up 2 inches
user54412
I've never met a pulley problem that was intuitive. Or useful.
skull petrol
skull petrol
You @0celo7 got it!
0celo7
0celo7
23:05
...what?
ACuriousMind
ACuriousMind
@0celo7 ! No, you're correct.
0celo7
0celo7
@ACuriousMind thank
skull petrol
skull petrol
Pulleys are so Archimedean :P
0celo7
0celo7
Jeez, what is the work done by this contraption
Too many forces!
gravity on A + gravity on B + spring + dunno
@ACuriousMind in a problem like this, where the velocity of the components is different, what speed does the work energy theorem give me?
oh, I get the sum of kinetic energies
nvm
ACuriousMind
ACuriousMind
I was just about to write that you can figure that out yourself.
0celo7
0celo7
23:17
D: you're heartless
@ACuriousMind this is urgent homework due tomorrow
ACuriousMind
ACuriousMind
So?
0celo7
0celo7
You wouldn't help a poor child in need D:
ACuriousMind
ACuriousMind
Not a child anymore, I thought?
0celo7
0celo7
@ACuriousMind Poor almost child if time runs backwards
@ACuriousMind how about this: does the tension do work? I want to say no, but I'm not 100%
00:00 - 13:0013:00 - 15:0015:00 - 16:0016:00 - 17:0017:00 - 23:0023:00 - 00:00

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