A landscape architect is planning an artificial waterfall in a city park. Water

Question

A landscape architect is planning an artificial waterfall in a city park. Water flowing at 0.673 m/s will leave the end of a horizontal channel at the top of a vertical wall h = 3.90 m high and falls into a pool (see figure).
(a) How far from the wall will the water land?
.34284 Incorrect: Your answer is incorrect.
Your response differs from the correct answer by more than 10%. Double check your calculations. m

Will the space behind the waterfall be wide enough for a pedestrian walkway? (Assume the water must land 2 m from the wall to provide adequate space for a person to walk beneath the waterfall.)
Yes No Correct: Your answer is correct.

(b) To sell her plan to the city council, the architect wants to build a model to standard scale, one-thirteenth actual size. How fast should the water flow in the channel in the model?
m/s

Explanation / Answer

s = .5at^2 2.8 = .5(9.80665 m/s²)t^2 t^2 = 5.6/9.80665 = 0.5714 t = 0.756 sec d = vt = 1.72(.756) = 1.3 meters Yes, but might get your head wet.

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