1
   

Physics problem, relative velocity?

 
 
Reply Sun 6 Jan, 2013 03:00 pm
A river flows downstream from east to west with a constant speed of 6m/s. There is a boat the usually travels in a straight line between two docks A and B directly opposite each other. The river is straight and has a constant width of 2km. The boat always moves with a speed of 10m/s with respect to the water when it is away from the shore. The captain must calculate the correct angle to aim the boat upstream (measured from straight across so that the combined effect of the boat moving through the water and the water flowing over the land will cause the boat to move due north over the land (or due south on the return trip). One day the captain makes a mistake, he chooses the correct angle described above but aims downstream instead of up and ends up doing diagonally the opposite direction. He stops at land and calculates the correct aiming strategy to retrace the straight line path. How long will this crossing from where he ended up back to the start. Please provide full solution.
  • Topic Stats
  • Top Replies
  • Link to this Topic
Type: Question • Score: 1 • Views: 968 • Replies: 0
No top replies

 
 

Related Topics

Highlight and name the tense - Question by poolmaniac747
goodday - Question by goldarmier
Bacteria recovery - Question by micro14
math problem - Question by ramzan
Blacky test - Question by dette0108
utility/demand functions economics - Question by Dublinking
Western Civilization ( History) - Question by Omalinov96
Machiavellis's the prince help - Question by hgfghfg
Dimensions, Height - Yard, Wall - Question by Randy Dandy
Help with a grammar question - Question by gabistephens
 
  1. Forums
  2. » Physics problem, relative velocity?
Copyright © 2019 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.04 seconds on 10/20/2019 at 07:32:28