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!

Friction and Acceleration Help needed

  1. Mar 10, 2005 #1
    A Hockey puck of a mass 350g is sliding along the ice at 6.0 m/s[n] when it hits a rough patch of ice that exerts a frictional force of 0.42N

    i)Determine the pucks acceleration
    ii)determine how far the puck will slide before stopping.

    f=ma a=f/m a=.42/.35 this gives me 1.2 or something but it is slowing down therefore it should a negative, should I rewrite the equation giving aa negative value or is there a better equation for the information given.
     
    Last edited: Mar 10, 2005
  2. jcsd
  3. Mar 10, 2005 #2
    the 0.42 should have a negative attached to it since it acts opposite the direction of motion
     
  4. Mar 10, 2005 #3
    is the value still 0.42 though?
     
  5. Mar 10, 2005 #4
    I thought the mass was irrelevant?
     
  6. Mar 10, 2005 #5
    well F=ma is relavant to the unit im working on, however it also incorporates other units so I could be way off but im just dealing with what I have.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Friction and Acceleration Help needed
Loading...