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!

Homework Help: Question based on using vectors

  1. Dec 28, 2014 #1
    1. The problem statement, all variables and given/known data
    Bjarne, Leif and Sammy are towing their vessel. The forces that they exert are directed along the tow lines, as indicated in Figure 15, which also provides the magnitudes of their forces. ( Note that in Figure 15, the force vectors are not drawn to scale.) What is the resultant force?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Dec 28, 2014 #2
    Decompose the vectors into their components (y and x) and add them accordingly. Do you know how to do that?
  4. Dec 28, 2014 #3
    Could you show me the decomposition method for vectors? Adding after decomposition i should have solid idea on how to. Thank You!
  5. Dec 28, 2014 #4
    You need to find the magnitude of the forces in the x and y direction. You do this by taking the magnitude given and using sine and cosine of the angle that they're at to find them.
  6. Dec 28, 2014 #5

    Ray Vickson

    User Avatar
    Science Advisor
    Homework Helper

    We are not allowed to help you if you have done no work on the problem yourself. Those are the PF rules.
  7. Dec 28, 2014 #6


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    This is a question which does not require the use of calculus to obtain a solution. It is being moved to the Intro Physics HW forum, which is more appropriate.
  8. Dec 28, 2014 #7


    Staff: Mentor

    You must show your own effort, even when you know it is wrong.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook