$A$ constant force $F$ acts on two different masses $m_1$ and $m_2$ independently and produces accelerations $A_1$ and $A_2$ respectively. When the same force $F$ acts on their combined mass $(m_1 + m_2)$,the acceleration $A$ produced is:

  • A
    $A_1 - A_2$
  • B
    $A_1 + A_2$
  • C
    $\frac{A_1 A_2}{A_1 + A_2}$
  • D
    $\frac{A_1 A_2}{A_1 - A_2}$

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