2.8 . CALC A bird is flying due east. Its distance from a tall build- ing is given by x(t) = 28.0m + (12.4 m/s)t - (0.0450 m/s3)13. 1) Find the position of the bird when the time t is a) t = 1.0s b) t = 2.0s c) t = 3.0 s 2) Find the average velocity of the bird when t=0.50 s and t=1.50s. 3) Find the equation of the x-instantaneous velocity of the bird. 4) Find the x-instantaneous velocities of the bird when the time t is a) t = 1.0s b) t = 2.0s C) t = 3.0s 5) Find the equation of the x-instantaneous acceleration of the bird. 6) Find the average acceleration of the bird when t=0.50 s and t=1.50s. 7) Find the x-instantaneous acceleration of the bird when the time t is a) t = 1.0s b) t = 2.0s c) t = 3.0s