# Perpendicular projectiles

Two particles move in a uniform gravitational field with an acceleration $$g$$. At the initial moment the particles were located at one point and moved with velocities $$v_1 =3 \text{ m/s}$$ and $$v_2 =4 \text{ m/s}$$ horizontally in opposite directions.

Find the distance between the particles at the moment when their velocity vectors become mutually perpendicular

×