two particles A & B are initially located at same point in uniform gravitational field of earth.at a certain moment they are projected with speeds v1 & v2 horizontally in opposite directions.the separation between them at a moment when their velocity vector become perpendicular to each other is??

Here,

Initial velocity of the first projectile = v₁

Initial velocity of the 2nd projectile = v₂

Angle of projection of first projectile = 0⁰

Angle of projection of first projectile = 180⁰

(Since both are horizontal projectiles)

Horizontal displacement of the first projectile x₁ = v₁t

Horizontal displacement of the 2nd projectile x₂ = -v₂t

Thanks & Regards
Mukesh Sharma
askIITians Faculty