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

Question

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