Q.

Is it true that work done against gravity is independent of the path through which the work is done?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
The work done by any object against the force of gravity is independent of the type of path chosen. It only depends on the height to which the object is raised and the mass of the given object. The work done by a body against gravity is given by the product of the force acting on the body and its displacement. That is,
W=Force × h
      =mg × h
      =m×g×h
Where mg is the force of gravity acting on a body of mass m and h is the height to which the object is displaced.
 
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Is it true that work done against gravity is independent of the path through which the work is done?