1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Find the speed of the boat relative to the current

  1. Apr 25, 2013 #1
    edit: woops I messed up the title. It should have been relative to the shore.
    1. The problem statement, all variables and given/known data
    A boat’s speed in still water is 1.95 . The boat is to travel directly across a river whose current has speed 1.10 . Determine the speed of the boat with respect to the shore

    2. Relevant equations
    I'm not sure.

    3. The attempt at a solution
    I thought it would be a sqauared plus b squared is equal to c squared. a being the speed of the boat in still water, b being the current and c being the speed with respect to the shore. This however does not give the right answer
    Last edited: Apr 25, 2013
  2. jcsd
  3. Apr 26, 2013 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    When it says 'directly across', I think it means the boat is to finish directly across from where it started. How is that to be achieved?
  4. Apr 26, 2013 #3
    boat crossing river

    The boat have to steer at an angle in order go right across the river.

    Attached Files:

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Find the speed of the boat relative to the current
  1. Speed boat (Replies: 1)