Question

A ball is thrown vertically upward with an initial velocity of 96 feet per second. The distances (in feet) of the ball from the ground after t seconds is s(t) = 96t - 16t^2.

a. At what time t will the ball strike the ground?

b. From what time t is the ball more than 128 feet above the ground?

Pls. answer ASAP with correct solution/s.

Thank you in advance!​

Answer 1

Answer:

a) time=31.9 seconds,

b)more than 128 feet means time=3 minutes 44 seconds