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A particle is pulled a distance lup a ro...

A particle is pulled a distance `l`up a rough plane inclined at an angle `alpha` to the horizontal by a string inclined at an angle `beta` to the plane `(beta + lt 90^@)`. If the tension the string is T, the normal reaction between the partical and plane is N, the frictional force is F, and the weight of the particle is `w`. write down expression for the work done by each of forces.

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