River Swimmer Problem|Shortest time

Questions|River Boat Problem |Shortest Time |To Reach Opposite to the Starting Point

Kinematics || River Swimmer problems

River-Swimmer Problem || Examples Based on River-Swimmer

Relative Velocity (subtraction of vectors), Rain-man problems, Swimmer-river problems, Shortest distance between 2 objects

River Boat Problem

River Boat Problem

A swimmer can swim in still water with speed v and the river is flowing with velociyt v//2 . To cross the river in shortest distance, he should swim making angle theta with the upstream. What is the ratio of the time taken to swim across the shortest time to that is swimming across over shortest distance

To cross the river in shortest distance, a swimmer should swimming an angle theta with the upsteram. What is the ratio of the time taken to swim across in the shortest time to that in swimming across over shortest distance. [Asume that the speed of swimmer in still water is greater than the speed of river flow]

A swimmer can swim in still water with a speed of 3 ms^(-1) While crossing a river his average speed is 5 ms^(-1) If crosses the river in the shortest possible time, what is the speed of flow of water ?

River Boat Problem |Condition When The Boatman Crosses The River In Shortest Interval Of Time |Condition When The Boatman Wants To Reach Point B, At A Point Just Opposite From Where He Started |Exercise Questions