Question

an object is projected upward with initial velocity of 124 ft per sec, its height h after t seconds is h=-16^2+124t.find the height of the object after 4 seconds.

Answer 1

I would think it is
h=-16t^2+124t
after 4 seconds or when t=4 find h
h=-16(4^2)+124(4)
h=-16(16)+496
h=-256+496
h=240

height is 240 feet