Question

Mis.. 4. A man weighs 600 N at the earth's surface. At what height above the surface of earth will he weigh 300 N? Take radius of earth to be 6400 km. (Ans. 2650 km)​

Answer 1

Answer:

Okay then tell me

Explanation:

Answer 2

Answer:

2649.6 or  2650

Explanation:

g`=  g / [1+h/re]^2       (this is already known)

600=mg

300=mg`

300=m* g / [1+h/re]^2

300=600/[1+h/re]^2

600/300 = re^2/[re+h]^2

root[300/600]=root[re^2/[re+h]^2]

root[1/2]=re/re+h

cross multiplying,

re+h=root2 *re

6400+h=root2*6400

6400+h=1.414*6400

6400+h=9049.6

h=9049.6-6400

h= 2649.6

h= 2650(approximately)

I hope it was clear.....Pls mark as brainliest :D