Three particles start from origin at the same time with a velocit… - Vidyadip

MCQ

Three particles start from origin at the same time with a velocity $2ms^{-1}$ along positive $x-$axis the second with a velocity $6ms^{-1}$ aling negative $y -$ axis. Find the velocity of the third particle along $x = y$ line so that the three particles may always lie in a straight line:

A
$-3\sqrt{3}$
✓
$3\sqrt{2}$
C
$-3\sqrt{2}$
D
$2\sqrt{2}$

✓

Answer

Correct option: B.

$3\sqrt{2}$

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