Question

The distance D , in miles to the horizon from an obsever's point of view over water or flat earth is given below , where H is the height of the point of view in feet . if a person whose eyes are 5ft above ground level is standing at the top of hill 45 ft above 'flat"earth, approximately how far to the horizon will she be able to see ?

D= sqaure route 2H

The distance to the horizon from the obsever's point of view is approximatley --- mi

Answer 1

Where is the diagram?

Answer 2

i will try to post it

Answer 3

the top is 3 ft and the side is 29 ft could not draw it good

Answer 4

The equation is given

Distance = sqrt (2H) (D is in miles and H in feet - so this is an empirical formula - not analytical. Use it anyway)

In this case H = 50 feet (45 ft hill + 5 feet to eye level)

so work out sqrt (2 *50) (you could probably do it without a calculator if you try! :-)

Answer 5

okay Thank you figured it out