An object weighs `10 N` at north pole of Earth. In a geostationary satellite distance `7 R` from centre of Earth (of radius `R`), what will be its (a) true weight (b) apparent weight?

Options

A. (a)0 N, 0N
B. (b)0.2N,0
C. (c)0.2N.9.8N
D. (d)0.2N,0.2N

Answer

B

Explanation

`g'=(GM)/((R+h)^(2))=(g)/(49),w'=(mg)/(49)=(10)/(49)=0.20N`
Arrarent weight of the rotating satellite is zero because satellite is in free fall state.