Problema Solution
A record for free-fall to the ground without a parachute is 311
ft. How
long did the fall take? Use the formula s equals 16 t squared comma
where s is the distance, in feet, traveled by an object falling freely from rest in t seconds.
Answer provided by our tutors
s = 311 ft
The formula for s is:
s = 16t^2
we plug s = 311 and solve for t:
16t^2 = 311
........
click here to see the equation solved for t
........
t = 4.41 s approximately
We need to ignore the negative solution because the time can be only positive.
The fall took 4.41 seconds.