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!

Vector Speed Problem

  1. Aug 27, 2009 #1
    1. The problem statement, all variables and given/known data

    A truck is moving north at a speed of 70 km/h. The exhaust pipe above the truck cab sends out a trail of smoke that makes an angle of 20 degrees east of south behind the truck. If the wind is blowing directly toward the east, what is the wind speed at that location?

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Aug 27, 2009 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi bigk2331! Welcome to PF! :wink:

    (Velocities are vectors, and so obey the law of vector addition, so …)

    Draw a vector triangle …

    what do you get? :smile:
     
  4. Aug 27, 2009 #3

    drizzle

    User Avatar
    Gold Member

    hello bigk2331, welcome to the PF


    what do you think the velocity of the smoke [despite the wind effect] and its direction?
    try to sketch the direction of the velocities mentioned in the problem, this is just a simple vector addition [put in mind the angle, so you can get the value needed]
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Vector Speed Problem
  1. Vector problem (Replies: 1)

  2. Vector problem (Replies: 7)

  3. 4-vectors problem (Replies: 1)

Loading...