Two particles are separated by a horizontal distance \( x \) as shown in figure. They are projec...

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Two particles are separated by a horizontal distance \( x \) as shown in figure. They are projected as shown in
\( \mathrm{P} \)
figure with different initial speeds. The time after
W
which the horizontal distance between them becomes zero is:
(1) \( \frac{x}{u} \)
(2) \( \frac{u}{2 x} \)
(3) \( \frac{2 u}{x} \)
(4) None of these
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