A hawk flies in a horizontal arc of radius 16 m at a constant speed of 4.8 m/s. Find its centripetal acceleration.

Question

Answer in units of m/s2. It continues to fly along the same horizontal arc but increases its speed at the rate of 1.52 m/s2. Find the magnitude of acceleration under these new conditions. Answer in units of m/s2.
Find the direction of acceleration relative to the direction of motion under these conditions. Answer between −180◦ and 180◦. Answer in units of ◦.

Answer 1

a=v^2/r
=4.8^2/16
=23.04/16
a=1.44