# Kinematics | Problem 1.8

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

## PHYSICAL FUNDAMENTALS OF MECHANICS | Kinematics

### Problem 1.8

Two boats, $$A$$ and $$B$$, move away from a buoy anchored at the middle of a river along the mutually perpendicular straight lines: the boat $$A$$ along the river, and the boat $$B$$ across the river. Having moved off an equal distance from the buoy the boats returned. Find the ratio of times of motion of boats $$\tau_A / \tau_B$$ if the velocity of each boat with respect to water is $$\eta = 1.2$$ times greater than the stream velocity.