find the river width.
A boatman finds that he can save 6 s in crossing a river by the quickest path than by the shortest path. If the velocity of the boat and the river be, respectively, 17 m/s and 8 m/s, find the river width.
21
Sep
A boatman finds that he can save 6 s in crossing a river by the quickest path than by the shortest path. If the velocity of the boat and the river be, respectively, 17 m/s and 8 m/s, find the river width. 17 m/s and 8 m/s A boatman finds that he can save 6 [...]