Question 1181161: The cross section of the rim of an iron flywheel 11 ft. in diameter is a rectangle 12" by 3". How much does the rim weigh? Note: Iron weighs 450lb/cu.ft.
Answer by ikleyn(52810)   (Show Source):
You can put this solution on YOUR website! .
The cross section of the rim of an iron flywheel 11 ft. in diameter is a rectangle 12" by 3".
How much does the rim weigh? Note: Iron weighs 450lb/cu.ft.
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I do not know who is/was a composer of this problem, but it is worded incorrectly.
To be correct, the problem must say, which one of the two given dimensions, 12" and 3", goes in radial direction
and which one is perpendicular to radius.
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