Q. It is
common to see birds of prey rising upward on thermals. The paths
they take may be spiral-like. You can model the spiral motion as
uniform circular motion combined with a constant upward velocity.
Assume a bird completes a circle of radius x m every t s and rises vertically at a rate of
y m/s.
Find the
speed of the bird relative to the ground.
Is the speed of the birdie equals to [2(pi)x] /
t