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Q.

If the coefficient of friction between A and B is μ, the maximum acceleration of the wedge A for which B will remain at rest with respect to the wedge is

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a

μg

b

g1+μ1-μ

c

g1-μ1+μ

d

answer is B.

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Detailed Solution

Nsinθ+μNcosθ=maN cosθ-μN sinθ=mgPutting θ  =  450 and solving these two equations, we geta=g1+μ1-μ
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