The string shown in the is passing over small smooth pulley rigidly attached to trolley \( A \)....
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0The string shown in the is passing over small smooth pulley rigidly attached to trolley \( A \). If speed of trolley is constant and equal to \( V_{A} \). Speed and magnitude of acceleration of block \( B \) at the instant shown in figure is :
(A) \( V_{B}=V_{A}, a_{B}=0 \)
(B) \( a_{B}=0 \)
(C) \( a_{B}=\frac{3}{5} v_{A} \)
(D) \( a_{B}=\frac{16 v_{A}^{2}}{125} \)
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