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!

Uniform Circular Motion of streetcar

  1. Oct 30, 2005 #1
    An old streetcar rounds a flat corner of radius = 9.1m at 4.444 m/s.
    What angle with the vertical will be made by the loosely hanging hand straps.

    I dont really know what I am looking for, Can anyone Help?
     
  2. jcsd
  3. Oct 30, 2005 #2

    Päällikkö

    User Avatar
    Homework Helper

    Start by drawing a diagram. What forces are acting on the hand straps? Think why the hand straps should form any angle with the vertical.
     
  4. Oct 30, 2005 #3
    centripetal acceleration would act on the handstraps
    a = vsquared/r

    a=2.1m/s(squared)

    is that all that acts on them
     
  5. Oct 30, 2005 #4

    Päällikkö

    User Avatar
    Homework Helper

    Almost. What keeps the car (and the hand straps, and pretty much everything else) on ground? :smile:
     
  6. Oct 30, 2005 #5
    Gravity ?
     
  7. Oct 30, 2005 #6

    Päällikkö

    User Avatar
    Homework Helper

    Yep.
    Now, the direction of the resultant force?
     
  8. Oct 30, 2005 #7
    could i do this:

    tan(theta) = 9.8m/s(squared) / 2.1m/s(squared
     
  9. Oct 30, 2005 #8

    Päällikkö

    User Avatar
    Homework Helper

    Yes, but as the requested angle was the angle with the vertical (not horizontal), you should switch the forces' (accelerations', as mass cancels out) places.
     
  10. Oct 30, 2005 #9
    ohhh..oops..thats what i meant in the first place

    Thanks
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Uniform Circular Motion of streetcar
Loading...