Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Word problem help please ?
an airplane propeller blade is 2.80ft long and rotates at 2210 revolutions per min. find the linear velocity of a point on the tip of the blade in ft/sec
- Favorite Answer
(2210 rev/min)(1 min/60 s)(2pi rad/rev)(2.80 ft/rad)
= (2210*2pi*2.80 / 60) ft/s
= about 6000 ft/s but use a calculator.
Hint: What is the circumference of the path of the tip of the propeller?
It does this 2210 times in 60 seconds.
Hopefully no one will spoil you the answer. That would be very irresponsible of them.