Using the equation for elastic collisions: v'₁ = (m₁ - m₂)v₁ / (m₁ + m₂) v'₁ = (2 - 3)(5) / (2 + 3) = -1 m/s
From non-inertial frames to complex rotational dynamics.
Focus on these topics, which are frequently covered in Olympiads and contests:
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