a 10 3 N b 23 8 N c A block of mass M is held against a rough vertical wall by pressing it with a finger If the coefficient of friction between the block and the wall is and the acceleration due to gravity is g what is the minimum force required to be applied by the finger to hold the block against the wall a Mg b Mg c Mg d 2 Mg A trolley of mass 20 kg is attached to a block of mass A The Take a 4 b 6 c 8 d 10 71 A cyc a re
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