# Collision inbound

**Classical Mechanics**Level 3

Two particles, \(A\) and \(C\) move in the same plane with constant velocities. The magnitude of velocity of \(A\) is \( 10 \text{ m/s} \). The velocity vector of \(A\) initially makes an angle of 30 degrees with the line joining \(A\) and \(C\). What must be the minimum magnitude of velocity of \(C\) in S.I units, such that they collide?