2012-07-30, 11:34 AM
Well first:
It really depends on what you designate as "up." If it's easier to set up as positive then you might as well set it up as positive.
Now to the actual problem.
What's the difference between w0 and wc? They both look like the exact same wheel. Until I can better understand it I can't solve it (heck even if I understand it I might not be able to solve it, but it's worth a shot).
I'll give you a tip though, in these sorts of problems the linear velocities of all the gears should be the same.
Quote:(for example a physics teacher saying that gravity was positive when something is going up)......
It really depends on what you designate as "up." If it's easier to set up as positive then you might as well set it up as positive.
Now to the actual problem.
What's the difference between w0 and wc? They both look like the exact same wheel. Until I can better understand it I can't solve it (heck even if I understand it I might not be able to solve it, but it's worth a shot).
I'll give you a tip though, in these sorts of problems the linear velocities of all the gears should be the same.