Question

find the time t, in seconds it takes for an object to fall from the top of a 1600 ft. building by using the function h=-16t^2+1600 (hint set h=0)

Answer 1

So set h=0

0=-16t^2+1600

now start isolating t

Answer 2

help me please i am not so sure how to

Answer 3

Step 1: subtract 1600 from both sides
Step 2: divide both sides by -16
Step 3: take the square root of both sides

Answer 4

k then

Answer 5

please help me more

Answer 6

What do you have after you do step one?

Answer 7

do i subtract 1600 from 0

Answer 8

1600=-16t^2??

Answer 9

you're subtracting it from both sides so it should be

-1600=-16t^2

now divide both sides by -16

Answer 10

100=t^2

Answer 11

Good, now take the square root of both sides

Answer 12

100

Answer 13

10??

Answer 14

Yes 10 seconds is the answer

Answer 15

ty for your help