Maria drops a stone from the top of a building. the stone falls 4.9 meters in the first second, 14.7 meters in the second second, and 24.5 feet in the third second, regardless of its weight. how many feet would an object fall in the tenth second?

The distance fallen, s, of a freely falling object is given by the equation . . .

s = 1/2 gt², where g is the acceleration due to gravity.

s = (9.8/2)(t²) = 4.9t²

distance fallen in tenth second = total distance fallen in tenth second - total distance fallen in ninth second . . .

or, s(10) - s(9)

= 4.9(10²) - 4.9(9²) = 93.1 ft

conservation of mass

mass before something happens = mass afterwards