Question

The height H of a skydiver t seconds after jumping. Let T be the independent variable, and assume the skydiver jumps from a height of 12,500 feet and lands after 300 seconds of flight

Answer 1

Answer:

25 seconds

Step-by-step explanation:

Skydiving.  

height (in feet) above the earth=h(t)= -16t^2 + 10,000

the time it would take to fall when h is 0  

-16t^2 + 10,000=0

-16t^2=-10000

16t^2=10000

t^2=10000/16=625

t=sqrt 625=25 seconds