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### Question

#### Two fixed frictionless inclined planes making an angle and 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 ?

- 4.9 in vertical direction
- 4.9 in horizontal direction
- 9.8 in vertical direction
- Zero

#### The correct answer is: 4.9 in vertical direction

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