Two racing cars of masses $m_1$ and $m_2$ are moving in circles of radii $r_1$ and $r_2$ respectively. Their speeds are such that each makes a complete circle in the same duration of time $T$. The ratio of the angular speed of the first to the second car is
- A$m_1:m_2$
- B$r_1:r_2$
- C$1:1$
- D$m_1r_1:m_2r_2$
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