rates of change?

Question

to estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. how high is the building if the splash is seen 6.8 seconds after the stone is dropped?

Answer 1

Use this formula to calculate height

x = 1/2 a t^2 where x is height of building (meters), a is the acceleration of gravity (9.8 m/s^2), and t is the time of the fall in seconds.

Steelr is wrong as 32 ft/sec/sec is the acceleration due to gravity in the Imperial system of measure, not the velocity the object fall at.

Answer 2

217.6 feet.... 32 feet per second X's 6.8 seconds