If a rock is thrown upward on the planet mars with a velocity of 40 ft/s, it’s height in feet t seconds later is given by y=40t - 16t^2. Find the average velocity over the given time intervals:

Question

Intervals continued: [2,2.1] [2,2.01] [2,2.05]

Answer 1

t = 2, y = 16

t = 2.1, y = 13.44

t = 2.01, y = 15.7584

t = 2.05, y = 14.76

[2, 2.1] avg. velocity = (13.44-16)/(2.1-2) = -25.6

[2, 2.01] avg, velocity = (15.7584-16)-(2.01-2) = -24.16

[2, 2.05] avg. velocity = (14.76-16)/(2.05-2) = -24.8