Question

According to the Guinness Book of World Records, 1998, stuntman Dan Koko fell a distance of 312 feet into an airbag after jumping from the Vegas World Hotel and Casino. The distance d in feet traveled by a free-falling object in t seconds is given by the formula d = 16t2. To the nearest tenth of a second, how long did the fall last?

Answer 1

t = 4.4 second

Step-by-step explanation:

Given :

Distance = 312 feet

time = t second

Distance is given by the formula, d = 16
`t^(2)`

Therefore, 312 = 16
`t^(2)`

312/16 =
`t^(2)`

19.5 =
`t^(2)`

t =
`√(19.5)`

t = 4.4 second