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Nov11-06, 12:48 PM
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Quote Quote by MCHammer
Yeah, I suppose the figure was misleading. The tracks can be thought of as being parallel and equal in length, except one of them has that dip factor. The height is the same as well. And if one comes to think of it the net acceleration will be the same as well, as a = gsinθ.
No-ooo.For when that ball on the second track takes a dip, theta increases, thus it's acceleration, and hence its speed, increases. The more in line the motion is with the vertical acceleration of gravity, the greater its speed. So even though the path taken by the second ball is longer, that does not necessarily imply it will take longer. Will it?? Won't it? Or is it a tie ballgame??