a cannon fires a shell that rise (h) cm after t seconds where

how would i find the maximium height (k) reached by the shell and how would its graph look. for

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- Apr 9th 2010, 10:17 PMsigma1finding height reached by cannon shell
a cannon fires a shell that rise (h) cm after t seconds where

how would i find the maximium height (k) reached by the shell and how would its graph look. for - Apr 10th 2010, 02:53 AMHallsofIvy
You should be able to see that the graph is a parabola.

Complete the square so you can write it as h= -16(t- a)^2+ b for some a and b. Since a square is never negative, h is always b**minus**something. h will be largest when t= a. - Apr 10th 2010, 05:20 AMsigma1
am tryin to determine the constants A and B but am having no luck

- Apr 10th 2010, 06:00 AMsigma1
- Apr 10th 2010, 06:12 AMsigma1
- Apr 11th 2010, 03:59 AMHallsofIvy
, not 1000.

- Apr 11th 2010, 05:47 AMskeeter
- Apr 11th 2010, 06:09 AMsigma1
ooh thank you i now see that.. so i can say then that the maximium height reached is 10000 as opposed to stating the coordinates of (25,10000),

i have also sketched this graph is it correct? - Apr 11th 2010, 09:01 AMBabyMilo
- Apr 11th 2010, 09:14 AMHallsofIvy
- Apr 11th 2010, 09:46 AMsigma1