Q. 5 A3.9( 65 Votes )

Give scientific reasons.

When an object falls freely to the ground, its acceleration is uniform.

Answer :

As we know that 

Where , G'= new gravitational acceleration

            G = gravitational acceleration initial (9.8 m/sec2)
            H = Height from the surface of Earth
           R= Radius of Earth
The height from which the body will be H<<Re
This means
 
We get

Hence , the acceleration of free falling body is uniform on the surface of Earth and Decreases with the height of the body. 

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