A hawk flies in a horizontal arc of radius 11.0 m at a constant speed 4.60 m/s. (a) Find its centripetal acceleration.

A hawk flies in a horizontal arc of radius 11.0 m at a constant speed 4.60 m/s.(a) Find its centripetal acceleration. m/s2(b) It continues to fly along the same horizontal arc, but increases its speed at the rate of 1.45 m/s2. Find the acceleration in this situation at the moment the hawk's speed is 4.60 m/s.