# 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 is

Question : 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 is

(A) They meet at time $t=\dfrac{u}{g}$ and at a height $\dfrac{u^{2}}{2G}+\dfrac{gT^{2}}{8}$

(B) They meet at time $t=\dfrac{u}{g}+\dfrac{T}{2}$ and at a height $\dfrac{u^{2}}{2g}+\dfrac{gT^{2}}{8}$

(C) They meet at time $t=\dfrac{u}{g}+\dfrac{T}{2}$ and at a height $\dfrac{u^{2}}{2g}-\dfrac{gT^{2}}{8}$

(D) They never meet