1. Not finding help here? Sign up for a free 30min 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!

Object sliding down inclined plane

  1. Jul 7, 2004 #1
    An object slides down an inclined plane of angle 30 degrees and of incline length 4m. If the initial speed of the object is 5m/s directed down the incline, what is the speed at the bottom? Neglect friction.

    I used Kinitial+Uinitial=Kfinal+Ufinal. I got 2gh+5^2=v^2, but when I solve for v, I get 10.17m/s. What am I doing wrong?
     
  2. jcsd
  3. Jul 7, 2004 #2

    Doc Al

    User Avatar

    Staff: Mentor

    What did you use for h? h must be the vertical distance the object moves, not the distance along the incline.
     
  4. Jul 7, 2004 #3
    Should I use 4sin30 as my height?
     
  5. Jul 7, 2004 #4

    Doc Al

    User Avatar

    Staff: Mentor

    Yes. That's the height.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Object sliding down inclined plane
Loading...