A bullet of mass 50 g moving horizontall...

A bullet of mass 50 g moving horizontally with a velocity `210 ms^(-1)` gets embedded in a block of mass 1 kg kept on a rough horizontal surface. If the coefficient of kinetic friction between the block and surface is `0.5.` The block- bullet system will move a distance of `"______"` before coming to res t(Acceleration due to gravity `=10 ms^(-2)).`

40 m

30 m

20 m

10 m

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