An object is thrown straight up into the air at an initial vertical velocity of
32 feet per second from an initial height of 128 feet and is represented by
the vertical motion model, h(t) = -16t2 + 32t + 128. How long is the object
in the air from the time it is thrown until it hits the ground?
Select one:
a. 4 seconds
Ob. 1 second
c. 144 seconds
d. 2 seconds