- #1
fterh
- 66
- 0
Some background information: I'm doing some reading up for PhO (so it's beyond what I'm supposed to learn), and so I'll post all my questions here (regarding both concepts and actual practice questions). Sorry if you feel there is a lack of effort on my part, but sometimes I'm really lost and don't know where to start.
1) http://imgur.com/3Wyp7
My question: How come for the equality to hold, [ITEX]\mu_s \tan{\theta} > 1[/ITEX]? I can't get the link. And since we don't know what is N2 and N2 cannot be eliminated from the equation, how come there is no mention of N2 after the statement "For the equality to hold,"?
1) http://imgur.com/3Wyp7
My question: How come for the equality to hold, [ITEX]\mu_s \tan{\theta} > 1[/ITEX]? I can't get the link. And since we don't know what is N2 and N2 cannot be eliminated from the equation, how come there is no mention of N2 after the statement "For the equality to hold,"?