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In the pulley-block arrangement shown in figure.
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\( \mathrm{P} \) Find the relation between acceleration of block \( \mathrm{A} \) and

W B.
(1) \( a_{\mathrm{B}}=-3 a_{\mathrm{A}} \)
(2) \( a_{\mathrm{B}}=-a_{\mathrm{A}} \)
(3) \( a_{\mathrm{B}}=-2 a_{\mathrm{A}} \)
(4) \( a_{\mathrm{B}}=-4 a_{\mathrm{A}} \)
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