Two particles \( A \) and \( B \) are initially \( 40 \mathrm{~m} \) apart, \( A \) is behind \(...

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Two particles \( A \) and \( B \) are initially \( 40 \mathrm{~m} \) apart, \( A \) is behind \( B \). Particle \( A \) is moving with uniform velocity of \( 10 \mathrm{~m} \mathrm{~s}^{-1} \) toward \( B \).
\( \mathrm{P} \) Particle \( B \) starts moving away from \( A \) with constant acceleration

W. of \( 2 \mathrm{~ms}^{-2} \).
The minimum distance between the two is
(1) \( 20 \mathrm{~m} \)
(2) \( 15 \mathrm{~m} \)
(3) \( 25 \mathrm{~m} \)
(4) \( 30 \mathrm{~m} \)
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