Asked by sydney
If a minute hand traveled at an average of 1 mph at the tip... how long in get would the minute hand have to be?
Answers
Answered by
Reiny
let the radius be r inches
one circumference = 2πr inches
so in 1 hour the tip moves 2πr inches
In 1 hr the hand went
1 mile
= 5280 ft
= 63360 inches
so 2πr = 63360
r = appr 10084 inches
or appr 840 ft
ridiculous question !!!
better check my arithmetic
one circumference = 2πr inches
so in 1 hour the tip moves 2πr inches
In 1 hr the hand went
1 mile
= 5280 ft
= 63360 inches
so 2πr = 63360
r = appr 10084 inches
or appr 840 ft
ridiculous question !!!
better check my arithmetic
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