The value of acceleration due to gravity on the surface of earth is 9.8 m/s2. ‘R’ is the radius of earth. The value of acceleration due to gravity at a high ‘R’ and at a depth ‘R’ from the surface of the earth respectively are:
1
2.45 m/s2, 9.8 m/s2
2
2.45 m/s2, zero
3
Zero, 9.8 m/s2
4
Zero, 4.9 m/s2