A particle (A) is dropped from a height and another particle (B) is thrown in horizontal direction with speed of 5 m/sec from the same height. The correct statement is

Q. A particle $A$ is dropped from a height and another particle $B$ is projected in horizontal direction with speed of $5m/s$ from the same height, then correct statement is

Q. A particle is projected upwards with some velocity. At what height from ground should another particle be just dropped at the same time so that both reach the ground simultaneously. Assume that first particle reaches to a maximum height $H$.

Q. From the top of a building, a particle is projected up at an angle $\theta$ with horizontal and reaches the ground in time $t_1$. A second particle projected down at an angle $\theta$ with horizontal and with same speed reaches the ground in time $t_2$. If third particle projected horizontally with same speed reaches the ground in time $t_3$, then

Q.

A particle (A) is dropped from a height and another particle (B) is thrown in horizontal direction with speed of 5 m/sec from the same height, bith occuring at the same time. The correct statement is

Q.

A particle is projected from point A on the ground at an angle $\theta$ with horizontal. Another particle is projected from point B simultaneously from height 4H above point A with same velocity. A and B are in the same vertical plane, where H is the maximum height attained by the particle A. Both the particles collide at the same time on the ground. Find the angle at which particle B is projected with horizontal: