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On a two lane road a car \( A \) is travelling with a speed of \( v=5 \mathrm{~ms}^{-1} \). Two car \( B \) and \( C \) approach car \( A \) in opposite direction with a speed \( u=10 \mathrm{~ms}^{-1} \) each. At a certain instant when the \( B \) and \( C \) are equidistant from \( A \) each being \( l=1500 \mathrm{~m}, B \) decides to overtake \( A \) before \( C \) does. What minimum acceleration of car \( B \) is required to avoid an accident with \( C \) :
Figure \( \mathbf{1 . 1 2 6} \)
(A) \( -0.2 \mathrm{~ms}^{-2} \)
(B) \( -1 / 15 \mathrm{~ms}^{-2} \)
(C) \( 0.2 \mathrm{~ms}^{-2} \)
(D) \( 1 / 15 \mathrm{~ms}^{-2} \)
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