Home     About Me     My Interests     Favorites      Pictures     Contact Me

      I threw an egg from 15ft high at a velocity of  3ft per second. When did the egg hit the floor? 

 h= -16t² +vt+s

h= -16t²+3t+15

x = -b+√b²-4ac

       2a

X=+3t√+ -16t²+15

        2(-16)

X=3+  √9-(4)(-16)(15)

          -32

X=3+√9+960

       -32

X=3+31.1

   -32

X= -1

X=2.9

I dropped a water balloon on the floor at the height of 10ft.

H= -16t²+10

-10          -10

-10= -16t²

-16    -16

.62=t²

√.62=t

.78=t