birminghamglobal asked:
According to the 1998 Guinness Book of World Records stuntman Dan Koko fell a distance of 343 feet into an airbag after jumping from the Vegas World Hotel and Casino. The distance d in feet traveled by a freefalling object in t seconds is given by the formula d = 16t 2. To the nearest tenth of a second, how long did the stuntman’s freefall last?
Select the correct answer.
4.6 seconds
6.1 seconds
5.7 seconds
4.1 seconds
none of these