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how long will it take for a wooden block of mass 2kg to from rest a distance of 3m down a rough plane inclined at 30 degree to the horizontal?given coefficient of sliding friction=0.20
u=0, s=3applying s=ut+1/2at2since u=0, the formula reduces to,s=1/2 at2 where a=gsin 30.-uk mgcos 30t=(2s/a)1/2
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