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Old 01-26-2011, 03:50 PM   #7 (permalink)
PaleMelanesian
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Location: Texas
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PaleCivic (retired) - '96 Honda Civic DX Sedan
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Correct - it takes more to accelerate the heavier wheels. Since we're talking about angular momentum, it takes much more.

However, if you don't use your brakes, you get all that momentum back in increased coasting distance. If you're not using the brakes, they can't be working harder.

In the real world where we sometimes do have to use brakes, it's better to build up and then waste a smaller amount of momentum, so lighter wheels are a good thing.
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