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WBJEE 2018 Physics Solved Paper

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Question : 29

Total: 39

A block of mass m2 is placed on a horizontal table and another block of mass m1 is placed on top of it.An increasing horizontal force F = αt is exerted on the upper block but the lower block never moves asa result. If the co-efficient of friction between the blocks is µ1 and that between the lower block and thetable is µ2 , then what is the maximum possible value of

?

m2
m1
1+
m2
m1
m1
m2
1+
m1
m2

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