Question

If a man weights 90 N on the surface of the earth,then the height above the surface of the earth of radius R, where the weight is 30 N is

Answer 1

Answer:

in moon it weights 30 newton

Answer 2

Explanation:

90=gmm/R^2.........i

30=gmm/(R+h)^2......... ii

dividing both equations

3=(R+h)^2/R^2

√3=(R+h)/R

√3-1=h/R

(√3-1)6400=h

now you can find h and R+h