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**Gravitational acceleration:**It is the acceleration gained by an object due to**gravitational force.**- Its SI unit is
**m/s2**. - It has both magnitude and direction, hence, it’s a
**vector quantity.** - Acceleration due to gravity is represented by
**g.** - The standard value of
**g**on the surface of the earth at sea level is**9.8 m/s2.**
- Its SI unit is
g1 = GM/R2
g2 = GM/(R + H)2 Where, R = Radius of the earth (6400 km), and H = height in meters
From the above discussion it's clear that
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