Two cars of masses $m_1$ and $m_2$ are moving in circles of radii $r_1$ and $r_2$, respectively. Their…

Two 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 they make complete circles in the same time $t$. The ratio of their centripetal acceleration is
  1. $m_1 r_1: m_2 r_2$
  2. $m_1: m_2$
  3. $r_1: r_2$
  4. $1: 1$

Solution

$a \propto r$

Asked in: JEE Main 2012 (Offline)

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