Q6:



6. A Weightless inextensible rope rests on a stationary wedge forming an angle $\mathrm{\alpha }$ with the horizontal. One end of the rope is fixed to the wall at point A. A small load is attached to the rope at point B, The wedge starts moving to the right with a constant acceleration a. The magnitude of acceleration of the load is given by: 

$$\begin{gathered} \left(\mathrm{A}\right) \mathrm{a} \left(\mathrm{B}\right) 2\mathrm{a} \sin \frac{\mathrm{a}}{2} \\ \left(\mathrm{C}\right) \mathrm{a} \sin \mathrm{\alpha } \left(\mathrm{D}\right) \mathrm{g} \sin \mathrm{\alpha } \end{gathered}$$