A pebble is tossed off a skyscraper and reaches the groung 7.65 seconds later. How tall is this building?
7.65 s x 9.8 m/s^2 = 74.97 meters?????
Not sure if I did this right? Thanks
It is wrong.
It falls (g/2)t^2, not g*t
g*t is the final velocity