In the figure (a) and (b) `AC` and `GF` are fixed inclined planes `BC = EF = x` and `AB = DE = y` A small block of mass `M` is rdeased from the point `A` it sides down `AC` and maches `C` with a speed `V_(C) ` The same block is relessed from rest from the point `D` it sides down `DGF` and reached the point the `F` with `V_(p) THe coefficients of kiletic friction between the block and the sarface `AC` and `DGF` are `mu` colculate `V_(C) ` and V_`(p)`A. `1.7 m//s`B. `2.7 m//s`C. `3.7 m//s`D. `0.7 m//s`

In the figure (a) and (b) `AC` and `GF` are fixed inclined planes `BC

1.	In the figure (a) and (b) `AC` and `GF` are fixed inclined planes `BC = EF = x` and `AB = DE = y` A small block of mass `M` is rdeased from the point `A` it sides down `AC` and maches `C` with a speed `V_(C) ` The same block is relessed from rest from the point `D` it sides down `DGF` and reached the point the `F` with `V_(p) THe coefficients of kiletic friction between the block and the sarface `AC` and `DGF` are `mu` colculate `V_(C) ` and V_`(p)`A. `1.7 m//s`B. `2.7 m//s`C. `3.7 m//s`D. `0.7 m//s`
Answer» Correct Answer - A In both the cases work done by friction will be `mu Mgx` `:. (1)/(2)MV_(c)^(2) =(1)/(2)MV_(F)^(2) =Mgy -mu gx` `:. V_(c) =V_(F)= sqrt(2gy-2 mu gx)`.

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