Question

the mass of planet earth is 6×10²⁴kg and its diameter is 12.3×10³km.calculate the value of acceleration due to gravity on the surface of the planet?​

Answer 1

Answer:

9.8m/s²

Gravitational force exerted by the earth on an object :

GM/d²

Assuming earth as a perfect sphere, distance between surface and center of gravity will be radius of the earth.

therefore,

{6.67408 × 10-11 m3•kg-1•s-²}×{6×10²⁴kg}

(12.3×10³)²×1/4

=9.8 m/s²

I hope you understood what I am going to tell.

thank you.