Recent content by rasofia77

  1. R

    Physics homework help? Grand Canyon problem

    I wasn't being snarky. I'm actually very appreciative of everyone that's taking their time to comment, including you because you actually just opened my eyes to something that I couldn't see. So thank you very much for that and I apologize if I came off as rude. (That's why I don't like to text...
  2. R

    Is the Velocity negative or positive?

    Sorry, haha *m/s. One last question, is acceleration the same for all objects? Well, it is, due to gravity (9.8m/s^2) ..but then again I get confused because there's so many different word problems with different accelerations as answers, obviously. What would be the final, true answer though?
  3. R

    Is the Velocity negative or positive?

    So there's always two right answers?
  4. R

    Is the Velocity negative or positive?

    Homework Statement If you were to throw a large log over the edge of the Grand Canyon and it took 5.65 seconds to hit the ground, calculate the velocity of the log at impact in m/s and calculate the distance the log fell in feet.[/B]Homework Equations vf=vi+at[/B]The Attempt at a Solution So...
  5. R

    Physics homework help? Grand Canyon problem

    Pre-ap physics. My teacher feels it's better not to go by the book so we never checked out any.
  6. R

    Physics homework help? Grand Canyon problem

    Well, how do I know that it's implied that they equal on certain problems? For example, if I asked you what the distance and displacement were after running 2 laps (and say each lap is a quarter of a mile). Well, the distance would be 1/2 mile..BUT the displacement would be zero since your...
  7. R

    Physics homework help? Grand Canyon problem

    The thing is I have no book and my notes are just FULL of formulas and examples, that's all. That's why I'm on this website trying to ask around and understand what this all means and what exactly I'm even doing.
  8. R

    Relative Motion problem involving a moving person and a moving bus

    I guess I was/am confused because (since it's velocity of John relative to the bus), I saw it as in...if John is going towards the bus, then in the bus's perspective, it looks like John is coming right at it, so it looks like John is going southward to it...I don't know, I'm all over the place...
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    Physics homework help? Grand Canyon problem

    [Moderator note: The appearance of another template here is not due to a new problem being posted, it's the result of a thread merge]1. Homework Statement If you were to throw a large log over the edge of the Grand Canyon and it took 5.6 seconds to hit the ground, calculate the velocity of the...
  10. R

    Physics homework help? Grand Canyon problem

    yes, I ended up using deltax=.5(v1+vf)t ...The only thing is that displacement (deltax) and distance are NOT the same things, right? So, how is it that I can use this formula and get the right answer?
  11. R

    Physics homework help? Grand Canyon problem

    Oh wait a second, s=d/t and v=deltax/t ...those are equations for average speed and average velocity?? I always assumed they could be for either instantaneous velocity or speed...my teacher never clarified, he just gave us equations.
  12. R

    Physics homework help? Grand Canyon problem

    so why doesn't v= deltax/t work? or rather, s=d/t ?
  13. R

    Physics homework help? Grand Canyon problem

    v=deltax/t ? maybe deltax=.5(vi+vf)t ? I don't even know what I'm doing, to be honest.
  14. R

    Physics homework help? Grand Canyon problem

    Homework Statement If you were to throw a large log over the edge of the Grand Canyon and it took 5.65 seconds to hit the ground, calculate the velocity of the log at impact in m/s and calculate the distance the log fell in feet. Homework Equations vf=vi + at, s=d/tThe Attempt at a Solution...
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