Meeting Point Problems

Two objects meet when their positions are equal: x_A(t) = x_B(t).

For uniform motion: t_meet = (x₀_B − x₀_A)/(v_A − v_B).

If v_A = v_B, they never meet (unless starting at same point).

If v_A − v_B and x₀_B − x₀_A have opposite signs, they never meet.