From The top of a vertical tower 248 m high, a stone is projected vertically downwards with a speed of 8 ms-1. After x seconds, another stone is projected vertically upwards from the level of the base of the tower with a speed of 25 ms-1. Given that the two stones are at the same height, moving in the same direction, 6 seconds after the projection of the first stone, calculate a) the value of x . B) the velocity of tge second stone at this instant

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