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Arythmatic
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Homework Statement
As the water in a river approaches a 10.0m vertical drop, its average speed is x m/s. As that water falls, its kinetic energy increases. The speed of the water based on 1kg of mass is 14.9m/s just before it hits the ground. Find the average speed of the river water before it goes over the edge.
The Attempt at a Solution
i used Eg=Ek
mgh=1/2mv^2
2gh=v^2
2(9.81)(10.0)=v^2
196.2=v^2 (square root not to isolate for velocity)
14.0m/s = v
the answer was about 5.0m/s I am just not sure how to get to that.