Question

A stuntman falls from the top of a building 26 ft above the ground. The function h (t) -16t^2+26

gives the height of the man in feet after t seconds.

Answer 1

let h(t)= 0 (because when it reaches the ground h=0)

0=-16t^2+116

16t^2=116

divide both sides by 16

t^2= 7.25

square root both sides to find t

t=2.69sec