Question 1061428
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the formula v=√ 2gh gives the velocity v,i  feet per second,of an object when it falls h feet accelerated by 
gravity g, in feet per second squared.if g, is approximately 32 feet per second squared, find how far an object 
has fallen if its velocity is 80 feet per second.
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Simply substitute the given g = 32 ft/m^2 and v = 80 ft/s into the equation.
You will get

80 = {{{sqrt(2*32*h)}}}.


It is the same as 

80 = {{{sqrt(64*h)}}},   or

80 = {{{8*sqrt(h)}}},  or

{{{sqrt(h)}}} = 10.


You need to find the unknown "h" from this equation.


For it, square both sides. You will get

h = 100.


<U>Answer</U>. The body has fallen 100 ft.
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