Circular motion question:
A bird of mass 0.5kg dives and then pulls out of the dive by flying in a portion of a vertical circle of radius 15m. At the bottom of the arc the bird's speed is 25m/s.

a) What is the magnitude of the net vertical force acting on the bird?
b) What is the magnitude of the upward lift exerted on the bird by the air?

Question

Circular motion question:
A bird of mass 0.5kg dives and then pulls out of the dive by flying in a portion of a vertical circle of radius 15m. At the bottom of the arc the bird's speed is 25m/s.

a) What is the magnitude of the net vertical force acting on the bird?
b) What is the magnitude of the upward lift exerted on the bird by the air?

followthefez · Answer

I worked out (a) as 25.7N and (b) as 20.8N.
Apparently the answer to (a) is 20.8N though.
Help?

ivancsc1996 · Answer

I don't get the question, I am sorry but I am Colombian. Can you do a drawing?

anonymous · Answer

yea.. you did something wrong .. lets see

what are the two forces which are acting on the bird?!

anonymous · Answer

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