A force F is applied on the top of a cube as shown in figure. The coefficient of friction between the cube and the ground is μ. If F is gradually increased, the cube will topple before sliding if
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a
μ>1
b
μ<1
c
μ<12
d
μ>12
answer is D.
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Detailed Solution
Cube will slide, if F>μmg ....1Cube will topple about O, ifτF>τmgFa>mga2F>12mg ........2if μ≥12, eq2 will be satisfied earlierif μ<12, eq 1 will be satisfied