On which factors does the change in magnitude of gravitation acceleration g depend ?
Answers
Explanation:
The Acceleration due to gravity depends upon the mass of the body and the force applied on it
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Factors affecting the change in magnitude of gravitational acceleration, g :
• The gravitational acceleration or acceleration due to gravity is given by the formula, g = GM / R²
where, g is the gravitational acceleration,
G is the gravitational constant having a value of 6.674 × 10⁻¹¹ m³ kg⁻¹ s⁻²),
M is the mass of the object,
and R is the distance between the object and the Earth.
• From the formula stated above, the factors on which the value of 'g' depends are :
(i) The mass of the object - The value of 'g' is directly proportional to the mass of the object approaching the surface of the Earth.
• In other words, the greater the mass of the object, the greater is the gravitational acceleration (g) acting on it.
(ii) The distance of the object from the Earth - The magnitude of 'g' is inversely proportional to the distance of the object from the Earth.
• This implies that, the farther the object from the Earth's surface, the lesser is the gravitational acceleration acting on it.
• Similarly, as the object comes closer to the Earth's surface, it falls at a faster rate due to a greater gravitational acceleration acting on it.