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**HELP!!! (again)**

## Homework Statement

The sun sets, fully disappearing over the horizon as you lie on the beach, your eyes 20cm above the sand. you immediately jump up, your eyes now 150cm above the sand, and you can again see the top of the sun. if you count the number of seconds until the sun fully disappears again, you can estimate the radius of the earth. but for this problem use the knwon radius of the earth (6,380km) and calculate the time t.

86400 is the seconds in a day

## The Attempt at a Solution

change of height= time x ((2xpixr)/86400)

150-20= time x ((2xpix6380)/86400)

time=130/0.463966692

time=280.2 seconds

I am just wondering whether I got the correct answer or not