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Q.

Is it true that the sum of total energy in a freely falling stone remains same?


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a

True

b

False  

answer is A.

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Detailed Solution

The above  statement is True.
The total mechanical energy of a body at a point during free fall is equal to the sum of the kinetic energy and the potential energy of the body at that point. Because the total energy of the system is always conserved, so when a body falls freely towards the earth, then its total energy remains constant, i.e. the sum of potential energy and kinetic energy of the body would be some at all points.
 
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