Five particles are projected simultaneously from the top of a tower that is `h = 32 m` high. The initial velocities of projection are as shown in figure. Velocity of 2 and 5 are horizontal.

(a) Which particle will hit the ground first?
(b) Separation between which two particles is maximum at the instant the first particle hits the ground?
(c) Which two particles are last and last but one to hit the ground? Calculate the distance between these two particles (still in air), at a time 0.3s after the third particle lands on ground.
`[g = 10 m//s^(2), tan 37^(@) = (3)/(4)]`

Answer

(a) particle 1 (b) particle 2 and 5 (c) particle 3 and `4; 50.94 m`