Question

- 18. If a man weighs 60 kg on the surface of the Earth, the
height above the surface of the Earth where his weight is
30 kg is
(a) 0.412 (b) VER (C) RIVE (d) R/2​

Answer 1

Answer:

a because of the gravitational force

Answer 2

Explanation:

g'=g/2

g/2=g/(1+h/R)²

(1+h/R)²= 2

1+h/R=√2

h/R=√2-1

h/R=1.41-1=0.41

h=0.41R

Ans:(A) 0.41 R