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A chain of length 4 m is kept on a table. 2 m of the chain hangs freely from the table’s edge. The mass of the whole chain is 8 kg. What is the work done to pull the whole chain onto the table? (Assume g = 10m/s2)

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Variable force is the force whose direction and amplitude vary during the body's motion and is not constant. Examples are spring force, magnetic force, electrostatic force, etc.


A chain of length 4 m is kept on a table. 2 m of the chain hangs freely from the table’s edge. The mass of the whole chain is 8 kg. What is the work done to pull the whole chain onto the table? (Assume g = 10m/s<sup>2</sup>)






 
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