A hawk flies in a horizontal arc of radius 12.0 m at a constant speed of 5.4 m/s. It continues to fly along the same horizontal arc but increases its speed at the rate of 2.8 m/s2. Find the acceleration magnitude under these conditions.

Answer 1

v^2/R radial
and
2 tangential

a = sqrt( [v^2/R]^2 + 2.8^2 )

but v = 5.4 + 2.8 t