The next question is about a bird \"banking its wings\" in flight. 1. Which of t
ID: 1291080 • Letter: T
Question
The next question is about a bird "banking its wings" in flight.
1. Which of the force diagrams below accurately depict the forces on the Turkey Vulture at right along with the sum force? FL is the lift provided by the air on the bird's wings.
2. The centripetal force on the bird is 1/4 of its weight. If the bird is moving 5m/s, what is the radius of it (circular) turn?
15m
25m
20m
5m
10m
Pictures: (Bird) http://i62.tinypic.com/11w4hud.jpg & (Q1 Graphs) http://i61.tinypic.com/wwcec5.jpg
Please add in reasoning behind answers. Thanks so much!!
a.15m
b.25m
c.20m
d.5m
e.10m
Explanation / Answer
a) The Graph B the best Force diagram of the Bird
b) v^2/R = g/4
==> R=4*v^2/g = 4*5^2/9.8 = 10.2 m
optionE
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