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[" 36.Block A of mass "m],[" rests on th...

[" 36.Block A of mass "m],[" rests on the plank "],[" B of mass "3m],[" which is free to "],[" slide on a frictionless horizontal surface.The coefficient "],[" of friztion between the block and plank is "0.2." If a "],[" horizontal force of magnitude "2mg" is applied to the "],[" plank "B" ,the acceleration of A relative to the plank and "],[" relative to the ground respectively,are "],[[" (a) "0,(9)/(2)," (b) "0,(29)/(3)," (c) "(39)/(5),(9)/(5)," (d) "(2g)/(5),(9)/(5)]]

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