NCERT CLASS IX - Science Textbook
Chapter 10 - Gravitation
What do you mean by acceleration due to gravity?
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the accelaration produced in the motion by a falling body under the influence of gravitational attraction of earth is called the accelaration due to gravity
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Acceleration due to gravity is the ratio between the weight of a body and its mass.
g = W / m
Acceleration due to gravity = acceleration in the vertically downward direction of a body which is freely falling from above the surface of Earth towards the center of Earth.
Newtons' universal law of gravitation: F = G M m / R²
where F = force of attraction on mass m due to Earth
M = mass of Earth
m = mass of a body on the surface of Earth
R = radius of Earth
Gravitational force on a body on the surface of Earth is its weight.
W = F = m g = G M m / d²
=> g = G M / d²
this is called the acceleration due to gravity on the surface of a planet.
g = W / m
Acceleration due to gravity = acceleration in the vertically downward direction of a body which is freely falling from above the surface of Earth towards the center of Earth.
Newtons' universal law of gravitation: F = G M m / R²
where F = force of attraction on mass m due to Earth
M = mass of Earth
m = mass of a body on the surface of Earth
R = radius of Earth
Gravitational force on a body on the surface of Earth is its weight.
W = F = m g = G M m / d²
=> g = G M / d²
this is called the acceleration due to gravity on the surface of a planet.
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