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Twenty identical cubical blocks each of ...

Twenty identical cubical blocks each of mass 100 gm and of side 10cm are lying on a horizontal surface. Work done in piling them one above the other is, (`g = 10ms^(-2)`)

A

`20 J`

B

`2 J`

C

`19 J`

D

`10 J`

Text Solution

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The correct Answer is:
C
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