calculus
posted by Anonymous on .
A ball is thrown upward with an initial velocity of 96 feet per second from the top of a 100 foot building. (a) When well the ball attain its maximum height? (b) When will the ball hit the ground? Give a decimal answers correct to 2 decimal places

(a) When g*t = 96 ft/s
t = 96/32.2 = ___ s
(b) When 100 + 96 t  (32.2/2)*t^2 = 0
Use the quadratic equation and take the positive root.