# 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?

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