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Two inclined planes OA and OB having inc...

Two inclined planes OA and OB having inclination (with horizontal) `30^(@)` and `60^@`(with horizontal), respectively, intersect each other at O as shown in figure. A particle is projected from point P with velocity `u = 10sqrt3 ms^(-1)` along a direction perpendicular to plane OA. If the particle strikes plane OB perpendicularly at Q, calculate

The maximum height attained by the particle (from the line O)

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The correct Answer is:
(i) 2s (ii) 10 m/s (iii) 5m (iv) 16.25 m (v) 20 m
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