# Kinematics | Problem 1.16

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

## PHYSICAL FUNDAMENTALS OF MECHANICS | Kinematics

### Problem 1.16

Two particles, $$1$$ and $$2$$, move with constant velocities $$v_1$$ and $$v_2$$ along two mutually perpendicular straight lines toward the intersection point $$O$$. At the moment $$t = 0$$ the particles were located at the distances $$l_1$$ and $$l_2$$ from the point $$O$$. How soon will the distance between the particles become the smallest? What is it equal to?