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Nov11-06, 03:07 PM
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Quote Quote by QuantumCrash
Hmmm. On one hand one ball has to travel further. But on the other hand the same ball will travel faster. But does it really mean that they will reach the end at the same time? The same speed at the end does not automatically mean the same time does it?
That is right, it does not. Like if you had a coaster with a lot of dips and rises, dips and rises, resulting in fast speeds then slower, fast then slower, etc., it would still arrive at the bottom with the same speed as one on an incline that started at the same height. But it would take a lot longer to get there. On the contrary, if you has a coaster with a parabolic curve, no rises, of the same height as the incline, it would take faster to get there, even though it had to travel a longer path, arriving at the same speed. But now back to Hammer's question, well???? (If you're looking for an answer from me, I finally figured it out based on Doc Al's hint on the very first response. Thanks, Doc.).