If an Object Is Dropped from the Top of a 121-Foot

Short Answer

If an object is dropped from the top of a 121-foot building, the amount of time t (in seconds) that it takes for the object to be h feet from the ground is given by the formula How long does it take before the object is 71 feet from the ground? How long does it take to reach the ground? (When it is on the ground, h is 0.)