200
The formula for the height of a falling object is shown below,where h is the height of the object in meters, t is the time in seconds, and k is the height, in meters, from which the object began its fall.
h = -4.9t² + k
If a rock is dropped from a building that is 150 meters tall, what is the height of the rock 4 seconds after it was dropped?
71.6 meters