Posted: 8/11/2008 6:09:06 PM EDT
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There are two rows of dominos lined up parallel to each other. The dominos in each row are standing upright like in a manner that one would knock down the first domino in each row which would then cause the next one to fall, etc. etc. You get the idea. The dominos are all the same size. Row A has 50 dominos equally spaced. Row B has 100 dominos equally spaced. Each row is the same total length (Row A has dominos spaced farther apart than Row B so that its 50 dominos are lined up in the same length of space that Row B has 100 dominos lined up). If the first domino of each is knocked over at the exact same start time, which row would have its last domino fall first? Or would it be a tie? |
The one on the right. EDIT: Seriously, I would think the one with more dominos would be slower due to increased resistance. More dominos equals more resistance. |
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without reading any of the replies... row b It's like how waves propagate. The more dense the medium ... IE the more dominoes in the same amount of space ... the faster it propagates. Sound traveling in water goes farther and faster than sound in air. Same for sound in steel verses water. It takes less time for each domino to strike it's neighbor. ETA: hurray for high school physics! |
Guess I took too much Biology. 
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