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What is your velocity relative to the bus?

  1. Sep 17, 2008 #1
    It's rush hour, you are heading home, and your bus is suck in traffic. It is moving 2 m/s. you get frustrated and decide to walk towards the front of the bus at 4 m/s. What is your new velocity relative to the ground?

    a. what is your velocity relative to the bus?

    b. what if you decided to walk 4 m/s backwards?

    can someone help me solve this. I have many problem like this but don't know the steps to it.
    Thanks ;] <3
     
    Last edited: Sep 17, 2008
  2. jcsd
  3. Sep 17, 2008 #2
    Re: Velocity

    is there anyone that can help me on this question?
     
  4. Sep 17, 2008 #3

    hage567

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    Re: Velocity

    Draw out the vectors. If the bus is heading forward at 2 m/s with respect to the ground, and you walk 4 m/s forward with respect to the bus, what speed would a person standing on the ground away from the bus see you moving at (with respect to the ground)? It's kind of hard to explain without giving the answer away. There must be at least one example of this in your textbook.
     
  5. Sep 17, 2008 #4
    Re: Velocity

    it's not a textbook because a teacher just gaves us questions.
     
  6. Sep 17, 2008 #5
    Re: Velocity

    is the new velocity 6 m/s?
     
  7. Sep 17, 2008 #6
    Re: Velocity

    =====> 2m + =======>4m rights?
     
  8. Sep 17, 2008 #7
    Re: Velocity

    b should be.

    =====> 2m/s
    <===== 4m/s


    = -2m/s?
     
  9. Sep 17, 2008 #8
    Re: Velocity

    nevermind i did it again and got.

    a. 2m/s

    b. 6m/s

    right?
     
  10. Sep 17, 2008 #9

    hage567

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    Re: Velocity

    Your first answers were correct. Why did you change them?
     
  11. Sep 17, 2008 #10
    Re: Velocity

    so that mean a is 6 m/s and b is -2 m/s?
     
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