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Two fixed frictionless inclined plane ma...

Two fixed frictionless inclined plane making an angle `30^(@)` and `60^(@)` with the vertical are shown in the figure. Two block A and B are placed on the two planes. What is the relative vertical acceleration of A with respect to B?

A

`4.9ms^(-2)` in vertical direction.

B

`4.9m^(2)` in horizontal direction

C

`9.8ms^(-2)` in vertical direction

D

Zero

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The correct Answer is:
A
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