3. [-/3 Points] DETAILS SCALC9 2.7.010. If a ball is thrown vertically upward with an initial velocity of 96 ft/s, then its height after t seconds is s - 96t - 16t . (Consider up to be the positive direction.) (a) What is the maximum height (in ft) reached by the ball? ft (b) What is the velocity (in ft/s) of the ball when it is 128 ft above the ground on its way up? ft/s What is the velocity (in ft/s) of the ball when it is 128 ft above the ground on its way down? ft/s Need Help? Read It Watch It Master It