Two fixed frictionless inclined planes making an angle $30^o $ and $60^o $ with the vertical are shown in the figure. Two blocks $A$ and $B$ are placed on the two planes. What is the relative vertical acceleration of $A$ with respect to $B$?

534-121

  • [AIEEE 2010]
  • A

    $4.9 $ $m/s^2$ in horizontal direction

  • B

    $4.9$ $ m/s^{2 }$ in vertical direction

  • C

    $9.8 $ $m/s^2$ in vertical direction

  • D

    Zero

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