Recent content by phoenix9

I also am assigned this problem tonight (though with different numbers) there is in fact a diagram that accompanies it: It looks to me that the curve of the sliding section has the same curvature as the static section .. thus one only has to consider distance to get to the curve and distance...

No .. apparently the method is correct (verified with friends who have gotten it correct) and I reran numbers and got 421 ... so apparently I just fail at math Specifically .. I should have noted that 20 \mbox{kg} \neq 30 \mbox{kg} and yes its a double post, but its new info

:cry: apparently not.. it got marked wrong (and we only have two submissions cause our teacher is mean like that) I wonder what we/I did wrong? oh well, it probably doesn't matter grade-wise cause its the only one I've missed so far this grading period and he curves it twice (he gives us...

hmm .. yea .. I've been debating that .. its opposite the intended motion of the lower block .. so .. in effect to the right .. or as I set it before, negative.. which of course .. for the moment considered, makes it precisely the same as the restoring force of the spring therfore making it ...

yea .. it should probably be written with more significant figures, if it were .. it would be 0.401 m As for the missing force, the only horizontal force I see that I have not included is the restoring force of the spring, however, this is applied to the upper block, not the lower. I'd...

Homework Statement This problem has actually been on here twice (with varying numbers) but not yet solved entirely A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached, as the drawing illustrates. The...