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Physics-

General

Easy

Question

A weightless inextensible rope rests on a stationary wedge forming an angle $alpha$ with the horizontal. On end of the rope is fixed to the wall at the point A. When a small load is attached to the rope at the point B, the wedge starts moving to the right with constant acceleration 'a'. What is the acceleration of the load when its is still on the wedge?

$2 a \sin a$
$2 a \cos α$
$2 a s i n \frac{α}{2}$
$2 a c o s \frac{α}{2}$

The correct answer is: $2 a s i n fraction numerator alpha over denominator 2 end fraction$

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