A stone is projected from a point on the ground so as to hit a bird on the top of a vertical pole of height h and then attain a max. height 2h above the ground . If at the instant of projection the bird flies away horizontally with a uniform speed and the stone hits the bird while descending , then ratio of speed of bird to the horizontal speed of the bird is ?
This long-lasting quarantine period has undoubtedly shaken up the world. From the economy to health care, and even to schools…
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