To cross a river of width $b = 320 \text{ m}$, a captain steers his boat always aiming towards a point that is directly across the river from his starting point. The velocity of his boat relative to river current is $v_{br} = 2.5 \text{ m/s}$ and river current velocity is $v_{r} = 1.5 \text{ m/s}$ everywhere.

Determine the time $t$ (in seconds) the boat will take to cross the river.

×

Problem Loading...

Note Loading...

Set Loading...