Choose the correct alternative:
(a) Acceleration due to gravity is independent of the mass of the earth/mass of the body.
(b) The formula is more/less accurate than the formula for the difference of potential energy between two points and distance away from the centre of the earth.

Vinay

3 years ago

(a)

Acceleration due to gravity is given by the formula:

Hence, it is independent of mass of body, but is dependent on mass of earth.

(b)

Gravitational potential energy is given by the formula:

^{and}

assuming distance between object and earth is nearly equal to the radius of the earth.

Substituting the second equation in first, we get

U \approx m g h

Hence, the first formula is more accurate.