Sunday

February 1, 2015

February 1, 2015

Posted by **AP Physics B** on Sunday, September 13, 2009 at 10:29pm.

ok hmmm

m2 g = m1 (acceleration radial)

so then if this is the correct equation my question... is how do you know when to consider the masses as a system and when not to?

net force = mass times acceleration

by deffintion

it dosen\'t mean this necessarily

net force = net mass times acceleration

when do I know when I should use the net mass and when not to as I have gotten points taken off before because i didn\'t use the net mass and am not sure when to consider the masses as one system and when not to...

like how come this is wrong

net force radial = (m1 + m2) (acceleration radial) = force of gravity on m2

and this is right

net force radial = m1 (acceleration radial) = force of gravity on m2

I need help on when to make this distinction between the masses and when not to as I don\'t know when i should...

THANKS!!!

This has been eating me away and I need to know this or the whole problem is wrong so it\'s important that I know when to make this distinction and when not to. So can you tell me when I should and when I shouldn\'t???

**Answer this Question**

**Related Questions**

Science-bobpursley - Thanks for helping me with al those parts bobpursley. If ...

physics-bobpursley/drwls please check - bobpursley/ drwls please help me with my...

Math CONTINUATION OF QUESTION FROM bobpursley - Thank you for answering the ...

algebra 2 - How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - ...

algebra 2 - How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - ...

Reiny or Damon or Bobpursley - Express the series 11 + 18 + 27 +...+ 171 using ...

acceleration estimate(bobpursley) - Well, bobpursley explained this to me. I ...

Physics - A vertical spring with a spring constant of 450 N/m is mounted on the ...

Chemistry!! - bobpursley please - Calculate the maximum wavelength of light ...

algebra 2 - Posted by hellogoodbie on Saturday, January 16, 2010 at 3:24pm. ...