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A small block of mass 1 kg is kept on a ...

A small block of mass `1 kg` is kept on a rough inclined wedge of inclination `45^@` fixed in an elevator. The elevator goes up with a uniform velocity `v=2 m//s` and the block does not slide on the wedge. Find the work done by the of friction on the block in `1s`. `(g=10 m//s^(2))`

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