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Physics-

General

Easy

Question

Block A moves on fixed incline. Surface PQ of block A is parallel to the inclined surface of the incline. The rod B rests on block A, as shown. All contacts are smooth. If the acceleration of the block A is a, find the acceleration of rod B :

$a s i n θ$
$a t a n θ$
$\frac{g}{2}$
zero

The correct answer is: zero

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