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A labourer lifts a stack of several identical bricks each of amss 1 kg by...

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A labourer lifts a stack of several identical bricks each of amss 1 kg by pressing hard with his hands The corfficient of static friction for all surfaces is u 0 5 The minimum normal force applied by each hand to just hold the bricks hold the bricks is 50 N Which of the following statement is correct a The number of bricks hold by labourer is 5 if normal force by hand is 50 N b The number of bricks hold by labourer is 10 if normal contact force by hand is 50 N c If normal contact force applied by labourer is slightly less than 50 N number of bricks hold by labourer is 10 d If labourer just hold the stack the contact force applied by each hand on the brick is 55 9 N

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