Recent content by SChiO

  1. S

    Kinematics-Boulder Falling Problem

    Oh I see...well if the only force really acting on the boulder is gravity that means i have constant acceleration, right? And I'm now remembering that the correct equation for this problem is one used under constant acceleration...
  2. S

    Kinematics-Boulder Falling Problem

    No other information was given. A picture of a boulder falling near a cliff was the only other thing given. But while the boulder is in free fall isn't it just gravity that's controlling the speed?
  3. S

    Kinematics-Boulder Falling Problem

    Homework Statement I'm not sure if this is the right place to post this but I need help understanding this question... Discounting air friction, approximately how far will the boulder have fallen in 2 seconds? a. 20m b. 45m c. 30m d. 90m Homework Equations x-x_0 = v_0t + 1/2at^2...
  4. S

    Spring Problem with Possible Conservation of Energy Concept ?

    Got it, thanks for everyone's help. I understand the concepts so I should be good
  5. S

    Spring Problem with Possible Conservation of Energy Concept ?

    I'm still not getting it :( Any other hints anyone can give?
  6. S

    Spring Problem with Possible Conservation of Energy Concept ?

    Ok. I'll keep thinking about it. I'm going to see if maybe I need to work in the work-energy theory...maybe I need two equations that can substitute into each other to solve for k
  7. S

    Spring Problem with Possible Conservation of Energy Concept ?

    Ok, won't I still need a mass?? 1/2mv2 = 1/2kx2 Or did I set that up wrong..
  8. S

    Spring Problem with Possible Conservation of Energy Concept ?

    Homework Statement A block slides from rest down a frictionless ramp which is 4 m long and has a 30 degree angle with respect to the ground. After reaching the bottom of the ramp it slides on a frictionless surface and compresses a spring a distance of 12cm (.12m) before coming to rest...
  9. S

    Rotational Motion of a toy airplane

    Homework Statement We were given a video...I'm not sure if you can post video links otherwise I would...but it's a video of an airplane on a string flying in a circular motion. On the top of the string you can see that the tension of the string is 6.5N. and it is flying at an angle of 50°...
  10. S

    Using energy concepts and possibly work bunjee jump problem

    Thanks that makes sense. Hopefully i get it right!
  11. S

    Using energy concepts and possibly work bunjee jump problem

    Homework Statement Suppose you have a friend who wants to go bungee jumping for her birthday. She wants to jump off a high bridge over a river and be able to touch the water below right when she gets to the bottom of the bungee cord extension. You want to double-check all the physics of...