# Kinematics | Problem 1.11

Irodov I.E. - Problems in General Physics (1981)

## PHYSICAL FUNDAMENTALS OF MECHANICS | Kinematics

### Problem 1.11

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 $$v_1 = 3.0$$ m/s and $$v_2 = 4.0$$ m/s horizontally in opposite directions. Find the distance between the particles at the moment when their velocity vectors become mutually perpendicular.