Gravity and velocity (performance assessment)

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      1.      The velocity of a free falling object is given by V = sqrt(2gh) where V is velocity (in feet per second), g is acceleration due to gravity (in feet per second squared), and h is the distance (in feet) the object has fallen. On Earth g = 32 ft/s^2.

      a.      Given Velocity, find h, where V = 72 ft/s.



      b.      Given Height, find V, where h =  100 feet.



      c.       An object is dropped from the roof of the Empire State building. Using the equation from above, find the height of the roof given that velocity of the dropped object was 283 ft/sec.



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