SOLUTION: 1)The rotor blades of an helicopter are 16ft long and are rotaing at 120rmp.
a)Find the angular speed of the rotor.
b)find the linear speed of a point on the tip of a b
Algebra.Com
Question 494860: 1)The rotor blades of an helicopter are 16ft long and are rotaing at 120rmp.
a)Find the angular speed of the rotor.
b)find the linear speed of a point on the tip of a blade .
2)Find the perimeter of a regular hexagon that is inscribed in a circle of radius 8m.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1)The rotor blades of an helicopter are 16ft long and are rotaing at 120rmp.
a)Find the angular speed of the rotor.
120 rev/min = 120*2*pi radians/min
= 240pi rad/min
------------
b)find the linear speed of a point on the tip of a blade
The circumference = 16*2*pi feet
Tip speed = 16*2*pi*120 ft/min
= 3840pi ft/min
----------------
That helicopter is not likely to fly at those blade speeds, way too slow.
----------------
2)Find the perimeter of a regular hexagon that is inscribed in a circle of radius 8m.
The central angles are 60 degs, making 6 equilateral triangles with sides of 8 m.
Perimeter = 6*8 = 48 m
RELATED QUESTIONS
How far does a point on the tip of a rotor blade travel when it makes one complete... (answered by Theo)
A wind turbine of rotor diameter 40 feet makes 80 revolutuionns per minute. Find the... (answered by Boreal,ikleyn)
***I NEED THE STEPS TO SOLVE THIS PROBLEM SO THAT I CAN BETTER UNDERSTAND IT...PLEASE... (answered by stanbon)
The four blades of a helicopter meet at right angles and are all the same length. The... (answered by nerdybill)
An airplane propeller whose blades are 5.50 feet long is rotating at 2400 rpm. Find the... (answered by solver91311)
A car has two different sized disc brake rotors. The front brakes have a diameter of 35... (answered by rfer)
The coordinates are (15,80) for the helicopter and (55,38) for the boat. A Coast Guard... (answered by solver91311)
A fan motor turns at a certain angular speed. How would the angular speed of the fan... (answered by Alan3354)
A wind generator has blades 4.20 m long. Find the tip speed when the blades are rotating... (answered by Edwin McCravy)