At what altitude the value of g becomes 3/4 of its value on the surface of earth?
r^2/rearth^2 = 4/3
r = rearth *sqrt (1.33) = 1.15 rearth
height = r - rearth
= .15 rearth
r = rearth *sqrt (1.33) = 1.15 rearth
height = r - rearth
= .15 rearth