A football is thrown upward with an initial velocity of 50 feet per second from a height of 100 feet. The height of the object t seconds after it is thrown is glven by the function h(t) = -16t2 + 50t + 100. Determine the ball's average velocity from t = 0 to t = 3 seconds. 1) 2ft/s
2) -2 ft/s
3) -1.2 ft/s
4) 5 ft/s