A projectile is fired vertically upwards with an initial velocity u . After an interval of T seconds a second projectile is fired vertically upwards, also with initial velocity u .
A. They meet at time `t=(u)/(g)` and at a height `(u^(2))/(2g)+(gT^(2))/(8)`
B. They meet at time `t=(u)/(g)+(T)/(2)` and at a height `(u^(2))/(2g)+(gT^(2))/(8)`
C. They meet at time `t=(u)/(g)+(T)/(2)` and at a height `(u^(2))/(2g)-(gT^(2))/(8)`
D. They never meet
