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[" Example "9.10" An object of mass "m" ...

[" Example "9.10" An object of mass "m" is tied to a string of "],[" length land a variable force "F" is applied on it which brings "],[" the string gradually at angle "theta" with the vertical.Find the"],[" work done by the force "F" ."],[" Solution In this case,three forces are acting on the object: "],[" I,tension (T) "],[" 2,weight "(mg)" and "],[" 3,applied force (F) "]

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