Question

Derive mathematical formula for universal law of gravitation and write in words.

Answer 1

Answer:

To calculate the value of g:

(9), namely, universal gravitational constant, G = 6.7 × 10–11 N m2 kg-2, mass of the earth, ... 6.7 10-11 N m2 kg-2 6 1024 kg / (6.4 106 m)2 = 9.8 m s–2. Thus, the value of acceleration due to gravity of the earth, g = 9.8 m s–2.