33. Consult Multiple-Concept Example 4 for background before beginning this problem. 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?

So we find what the y component must be to create the 75° angle

 

Solve for vy

 

We know that v0y is zero since the water was horizontally moving at top of falls.  So we now have a final velocity, an initial velocity, and an acceleration and we want a distance so

 

Solve for distance

 

 

 

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This page last updated on January 11, 2020