SOLUTION: A wind turbine of rotor diameter 40 feet makes 80 revolutuionns per minute. Find the linear speed of the rotor tip in feet for second and miles per hour. Please help me. Thank yo

Question 1077721: A wind turbine of rotor diameter 40 feet makes 80 revolutuionns per minute. Find the linear speed of the rotor tip in feet for second and miles per hour.
Please help me. Thank you.
Found 2 solutions by Boreal, ikleyn:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
80 revs/min=80*pi*40 ft/min=10,053.10 ft/min and 167.55 ft/sec
Multiply that by 3600 sec and divide by 5280 ft/mile=114.24 mph
Answer by ikleyn(52890) (Show Source): You can put this solution on YOUR website!
.
A wind turbine of rotor diameter 40 feet makes 80 revolutuionns per minute. Find the linear speed of the rotor tip in feet for second and miles per hour.
Please help me. Thank you.
~~~~~~~~~~~~~~~~~~~~~~~~~~

The linear speed in ft/second is = = 167.47 ft/sec.

To get it in miles per hour, multiply it by the conversion factor .

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