Correct Answer:
Option B - The acceleration produced in an object by a gravitational force is called gravitational acceleration. It is denoted by 'g'. The value of gravitational acceleration 'g' on Earth is 9.8 m / s²
Suppose the mass of the Earth is Me and the radius of the Earth is Rₑ, the mass of the object placed on the surface of the Earth is m, then the force or gravitational force exerted by the Earth on the object will be F = GMₑm/R². Where G is the gravitational constant - where,
G = 6.7 × 10⁻¹¹ Nm ² / kg²
Change in value of 'g'-
(1) On moving up or down from the center of the Earth, the value of 'g' decreases.
(2) The value of 'g' is maximum at the poles and minimum at the equator.
(3) The value of 'g' decreases as the Earth's rotation speed increases and the value of 'g' increases as earth rotation speed decreases.
(4) The value of 'g' depends on the mass and radius of the Earth i.e. it changes with height or depth
B. The acceleration produced in an object by a gravitational force is called gravitational acceleration. It is denoted by 'g'. The value of gravitational acceleration 'g' on Earth is 9.8 m / s²
Suppose the mass of the Earth is Me and the radius of the Earth is Rₑ, the mass of the object placed on the surface of the Earth is m, then the force or gravitational force exerted by the Earth on the object will be F = GMₑm/R². Where G is the gravitational constant - where,
G = 6.7 × 10⁻¹¹ Nm ² / kg²
Change in value of 'g'-
(1) On moving up or down from the center of the Earth, the value of 'g' decreases.
(2) The value of 'g' is maximum at the poles and minimum at the equator.
(3) The value of 'g' decreases as the Earth's rotation speed increases and the value of 'g' increases as earth rotation speed decreases.
(4) The value of 'g' depends on the mass and radius of the Earth i.e. it changes with height or depth