Question
3 swimmers cross a river with a downstream current.
Swimmer A swims straight across and ends up down the river.
Swimmer B swims against the current, and reaches the shore directly across from the starting point.
Swimmer C swims with the current, landing very down stream.
Who gets across first?
Swimmer A swims straight across and ends up down the river.
Swimmer B swims against the current, and reaches the shore directly across from the starting point.
Swimmer C swims with the current, landing very down stream.
Who gets across first?
Answers
Swimmer C crosses the river more quickly because she is traveling faster, at the speed of the river plus the speed of her added effort.
Why would this happen? Aren't the vertical and horizontal components independent of each other thus making the swimmer swimming perpendicular to the shore arrive first at the opposite shore since the vertical component is the largest of the three other swimmers. That's my view of the problem. If someone could explain in detail why I am wrong email me at e.sabado95 (at) gmail (dot) com
Related Questions
A swimmer swims in still water at a speed of 6.83 m/s. He intends to swim directly across a river th...
A swimmer swims perpendicular to the bank of a 20.0 m wide river at a velocity of
1.3 m/s. Suppose...
A swimmer is swimming across a river that is exactly one mile wide, and the river current is 1.5 mph...
A swimmer jumps into a 5.1km wide river and swims straight for the other side at 0.87 km/h [N]. Ther...