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In case of pulling & pushing minimum forces required are  \fn_cm \large \frac{{w\cos \alpha }}{{\cos (\theta - \alpha )}}  & \large \frac{{w\cos \alpha }}{{\cos (\theta + \alpha )}} then accelerations are (Here α = Angle of friction and θ is the angle with horizontal at which the force is applied).

a
a = g, a = g/ µ
b
a = 0, a = 0
c
a = g/ µ , a = µ g
d
none

detailed solution

Correct option is B

When the body is on the verge of motion , it is in equilibrium . For pulling ,For pushing , For pulling , Similarly for pushing

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