- #1
dmoney123
- 32
- 1
Homework Statement
During a sustained wind the blades on a two blade horizontal–axis wind turbine is
turning with an angular velocity of 5 rad/s. If initially the blades have an angular velocity of 2
rad/s, determine the distance point P on the tip of the blade has traveled in 3.0 seconds. Also,
what is the magnitude of the acceleration of this point when t = 3.0 seconds.
Point P is the Tip of the blade. Radius is 4.55m.
Homework Equations
[/B]
where w=omega (angular velocity in rad/s)
w=v/r
L=Iw
The Attempt at a Solution
[/B]
Initially we have 2rad/s
wr=v
2rad/s * 4.55m=9.1 m/s
5rad/s *4.55m= 22.75m/s
I don't understand how to answer the question considering there is no information given on how fast it accelerates to 5rad/s. Does it instantly go to 5rad/s
Any insight?