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Two cars \( \mathrm{A} \) and \( \mathrm{B} \) are at rest at same point initially. If
P A starts with uniform velocity of \( 40 \mathrm{~m} / \mathrm{sec} \) and \( B \)

W starts in the same direction with constant acceleration of \( 4 \mathrm{~m} / \mathrm{s}^{2} \), then \( \mathrm{B} \) will catch \( \mathrm{A} \) after how much time
(1) \( 10 \mathrm{sec} \)
(2) \( 20 \mathrm{sec} \)
(3) \( 30 \mathrm{sec} \)
(4) \( 35 \mathrm{sec} \)
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