What is the Acceleration Due to Gravity?
The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity. It has a magnitude and a direction. As a result, it is regarded as a vector quantity. m/s2 is its SI unit. The symbol for gravitational acceleration is "g." At sea level, the standard value of "g" on the earth's surface is 9.8 m/s2.
The Formula of Acceleration Due to Gravity:
The Force acting on a body due to Gravity is given by f = mg
Where f denotes the Force working on the body
g indicates the acceleration due to Gravity,
m represents the mass of the body.
Now, according to the universal law of gravitation,
F = GmM/(r+h)2
- F = the Force between two bodies,
- G = universal gravitational constant (6.67×10-11 Nm2/kg2)
- m = mass of the object,
- M = mass of the earth,
- r = radius of the earth.
- h = height at which the body is from the earth's surface.
This helps us understand the following:
- Irrespective of the different masses, All bodies experience the same acceleration due to Gravity.
- Its value on earth depends upon its mass rather than the object's mass.