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Questions  

A cube of side a is placed on an inclined plane of inclination θ. What is the maximum value of θ for which the cube will not topple?

a
15o
b
30o
c
45o
d
60o

detailed solution

Correct option is C

The cube will not topple until the line of action of CM passes through the point A of cube That is, tan⁡θ=AXOX=a/2a/2 or θ=45∘

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