Difference between revisions of "2015 AMC 10A Problems/Problem 14"

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4 o clock
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==Problem==
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Clock - radius 20 cm
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Disk - radius 10 cm, externally tangent at 12 o'clock, arrow pointing up
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If the disk rolls clockwise, where on the clock will it be when the arrow points up?
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==Solution==

Revision as of 19:14, 4 February 2015

Problem

Clock - radius 20 cm Disk - radius 10 cm, externally tangent at 12 o'clock, arrow pointing up

If the disk rolls clockwise, where on the clock will it be when the arrow points up?


Solution

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