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A particle is moving from a point (2m, 3...

A particle is moving from a point `(2m, 3m)` to `(1m, 1m)` under the influence of force with potential energy `U = lambda (x + y)`. If work done by the force is `n lambda`, then find the value of n.

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The correct Answer is:
3
`W_("conservative") = - Delta U = U_(i) - U_(f)`
`W_("conservative") = lambda (2 + 3) - lambda (1 + 1) = 3 lambda`
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