If a ball is thrown vertically upward with an initial velocity of 96 ft/s, then its height after t seconds is s = 96t

Question

If a ball is thrown vertically upward with an initial velocity of 96 ft/s, then its height after t seconds is s = 96t -16t²(consider up to the positive direction)
(a) What is the maximum height (in ft) reached by the ball?
(b) What is the velocity (in ft/s) of the ball when it is 128 ft above the ground on its way up?
What is the velocity (in ft/st of the ball when it is 128 ft above the ground on its way down?

Kunduz · Accepted Answer

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