1. Limited time only! Sign up for a free 30min personal 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!

Constant Velocity and Crates

  1. Jan 29, 2014 #1
    1. The problem statement, all variables and given/known data
    A 15 kg crate rests on the floor. The coefficient of kinetic friction between the crate and the floor is 0.28. How much horizontal force is needed to slide the crate across the floor at a constant speed?


    2. Relevant equations

    Fnet=ma


    3. The attempt at a solution
    F=[itex]M[/itex]N
    [itex]Mmg=.28*15 kg*9.8[/itex]

    41.16 N
    For a final rounded answer of 41.2 N.

    This answer seems plausible to me, would someone please confirm?

    Thanks! :smile:
     
    Last edited: Jan 29, 2014
  2. jcsd
  3. Jan 29, 2014 #2

    CWatters

    User Avatar
    Science Advisor
    Homework Helper

    Looks right to me.
     
  4. Jan 29, 2014 #3
    Thank you!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted