variation of acceleration due to gravity
Answers
Explanation:
Variation Of Acceleration Due to Gravity
The value of acceleration due to gravity depends upon the values of gravitational constant , mass of earth. and radius of earth . A gravitational constant and mass of earth are always costant , the value of acceleration due to gravity is constant as long as the radius of earth remains constant .
The value of acceleration due to gravity is not constant at all places on the surface of the earth .
This is due to the fact that earth is not perfectly spherical in shape. So the value of radius is not same at all places.
The radius of earth at the poles is minimum , the value of gravitational constant is maximum at poles.
The radius of earth is maximum at equator and the value of gravitational constant is minimum at equator.
Gravity
=Gravitational constant*Mass/radius^2
when we go up from the surface of earth , the distance from the centre of earth increases and hence the value of gravity decreases.
The value of gravity also decreases when we go down.
★ Refer to the attachment
