- #1

crono_

- 44

- 0

## Homework Statement

Suppose the water at the top of Niagara Falls has a horizontal speed of 2.7 m/s just before it cascades over the edge of the falls. At what vertical distance below the edge does the velocity vector of the water point downward at a 75° angle below the horizontal?

__x direction__a = 0 m/s

v

_{0x}= 2.7 m/s

v

_{fx}= 2.7 m/s

x = ?

__y direction__a

_{y}= -9.80 m/s

^{2}

v

_{0y}= 0 m/s

v

_{fy}= ?

y = ?

__Other Info__Angle = 75 degrees below horizontal

t = ?

## Homework Equations

Newton's laws of motion...but I'm not exactly sure which ones as it appears there are two variables missing from each one.

## The Attempt at a Solution

I'm studying for my final this Friday. This question plagued me at the beginning of the term, I never got it. The class moved on, and so did I. But I'm looking at it again and am determined to get it, but am still drawing a blank.

I'd like to find

**t**as that would help significantly, but each equation that I've considered with it has another unknown variable as well.

Kind of flustered...