Question

A student drops an object out the window of the top floor of a high-rise dormitory.

Answer 1

-- The acceleration due to gravity is 32.2 ft/sec² .  That  means that the
speed of a falling object increases by an additional 32.2 ft/sec every second.

-- If dropped from "rest" (zero initial speed), then after falling for 4 seconds,
the object's speed is (4.0) x (32.2) = 128.8 ft/sec.

-- 128.8 ft/sec = 87.8 miles per hour

Now we can switch over to the metric system, where the acceleration
due to gravity is typically rounded to 9.8 meters/sec² .

-- Distance = (1/2) x (acceleration) x (time)²

       D = (1/2) (9.8) x (4)² =  78.4 meters

-- At 32 floors per 100 meters,  78.4 meters = dropped from the 25th floor.


The 5 points are certainly appreciated, but I do wish they were Celsius points.