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Three stones are projected simultaneousl...

Three stones are projected simultaneously with same speed u from the top of a tower. Stone 1 is projected horizontally and stone 2 and stone 3 are projected making an angle q with the horizontal as shown in fig. Before stone 3 hits the ground, the distance between 1 and 2 was found to increase at a constant rate u.

(a) Find `theta`
(b) Find the rate at which the distance between 2 and 3 increases.

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The correct Answer is:
(a) `theta = 60^(@)` (b) `sqrt(3) u`
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