n' identical cubes each of mass 'm' and ...

n' identical cubes each of mass 'm' and edge 'L' are on a floor. If the cubes are to be arranged one over the other in a vertical stack, the work to be done is

`Lmng(n-1)/2`

`Lg(n-1)/mn`

`(n-1)/Lmng`

`Lmng/2(n-1)`

Text Solution

Verified by Experts

The correct Answer is:

`(1)`

`U_(i) = nmg(L/2), U_(f) = nmg((nL)/2),W = U_(i) - U_(f)`

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