The stuntman's free fall lasted approximately 3.8 seconds.
We are given that the stuntman fell 303 feet and that the distance fallen is given by the formula d=16t^2. We need to find the value of t that satisfies this equation.
We can rewrite the equation d=16t^2 as t^2=d/16.
We are given that d=303, so we can substitute that value to get t^2=303/16.
Taking the square root of both sides of the equation gives
t = √(303/16) seconds.
t = 3.8
t value is approximately 3.8 seconds.