Acceleration of a freely falling object

The acceleration of a freely falling object near the earth's surface is about 9.80 m/s²; this is called "the acceleration due to gravity." The acceleration due to gravity is not quite constant, as it varies with height, and also varies from place to place on earth because of local factors (landforms, local variations in density of earth's crust, earth is not a perfect sphere, etc.), but for many motions that take place near the earth's surface it's a reasonable approximation to pretend that it is constant. (And we typically ignore air resistance and pretend that the acceleration of a falling object is due entirely to gravity.)

Suppose that you drop an object from a high place. Pretending that there is no air resistance, tabulate the speed of the object at the end of the first 4 seconds after it begins falling.