Question

if an object is projected upward with an initial velocity of 126 ft per sec, its height h after t seconds is h=-16^2 126t. find the height of the object after 4 seconds

Answer 1

After 4 seconds
h(4) = -16(4)^2 + 126(4) = -16(16) + 504 = -256 + 504 = 248 feet.