Find the average velocity (in m/s) over the given time intervals:

(i) 1, 2
(ii) 1, 1.5
(iii) 1, 1.1
(iv) 1, 1.01
(v) 1, 1.001

(b) Use your answer: If a rock is thrown upward on the planet Mars with a velocity of 18 m/s, its height in meters t seconds later is given by y = 18t - 1.86t^2. Round your answers to