3. A body slides down from rest from the top of a 6.4m long rough plane inclined at 30^° with the horizontal .find the time taken by the blocl in reaching the bottom of the plane.take coefficient of kinetic friction=0.2and g=9.8ms2

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a body slides down from rest from the top of 6.4m long rough plane inclined at 30degree with the horizontal find the time taken by block in reaching the bottom of the plane Take coefficient of friction to be 0.2 and g=9.8m/s^2

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