- #1

enantiomer1

- 13

- 0

## Homework Statement

Hi, I'm stuck on this problem (it seems simple but I can't seem to get it down),

The question is, "A certain cannon with a fixed angle of projection has a range of 1500 m. What will be its range if you add more powder so that the initial speed of the cannonball is tripled?"

## Homework Equations

d=v

_{hori}*t

d=v

_{hori}cos theta * t

## The Attempt at a Solution

At first I simply saw this as a distance versus velocity and time problem (x=v

_{0x}*t so I simply tripled the distance getting 4500; not surprisingly, I was wrong. I'm sure that the equation relies on the 'fixed angle' part of the equation so I simply divided the equation by 2

^{1/2}(due to cos theta) getting 3192, but I'm still wrong, what variable am I forgetting?