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A hiker stands on the edge of a cliff 490m above the ground and throws a stone horizontally with an initial speed of 15

A hiker stands on the edge of a cliff 490m above the ground and throws a stone horizontally with an initial speed of 15 ms. Neglecting air resistance, 2 find the time taken by the stone to reach the ground, and the speed with which it hits the ground.(Take g= 9.8 m s?)

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