Question

Discuss the relationship between 'g' and 'G'? Discuss briefly the effect of shape of Earth on 'g'?

I need Answer according to 3 marks please tomorrow is my exam. Please no spam Answers....

Answer 1

Answer:

The acceleration on an object due to the gravity of any massive body is represented by g (small g). The force of attraction between any two unit masses separated by unit distance is called universal gravitational constant denoted by G(capital g). The relation between G and g is not proportional. That means they are independent entities.

Explanation:

F = ma...............1

F = G*M*m/d2......2

By 1 and 2

ma = G*M*m/d2

On upward or downward motion under the influence of gravity a=g

So,  

  mg = G*M*m/d2

Cancelling m from both sides

g= G*M/r2

g=GM/r^2