If a rock is thrown upward on the planet Mars with a velocity of 10 m/s, its height y (in meters)'t seconds later is given by y = 10t - 1.86t2 Part A Find the average velocity of the rock over the given time intervals. Enter your answers as decimals rounded to two places. 1. t = 1 tot = 2: Average velocity ~ 4.42 m/s Il. t = 1 to t = 1.5: Average velocity ~ 5.35 m/s Ill. t = 1 tot = 1.1: Average velocity ~ 6.094 m/s IV. t = 1 tot = 1.01: Average velocity ~ 6.2614 m/s V. t = 1 tot = 1.001: Average velocity ~ 6.27814 m/s Part B Use your work from Part A to estimate the instantaneous velocity of the rock when t = 1. Use two decimal places. Instantaneous velocity ~