Question 195591
A soccer ball is kicked straight up with an initial velocity of 32 ft. per second. Its height above the earth is given by s (t) = -16t2 + 32t, where,‘s’ is the height in ft. at any time, ‘t’ seconds. 

a	What is the maximum height reached by the ball? 16ft
b	How long after it was thrown up the ball reaches its maximum height? 1sec