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!

A question regarding power and hookes law

  1. May 5, 2010 #1
    1. The problem statement, all variables and given/known data

    A 2.8 m high spring has a spring constant of 12 N/m. How much power is required if the spring is compressed 1.2 m in 2.5s?

    2. Relevant equations

    Pe= 1/2kx^2

    Power= W/t

    3. The attempt at a solution

    =1/2(12)(1.2)^2
    =8.64 J

    so... Power = 8.64/2.5

    = 3.456 watts

    is this correct? thanks in advance!
     
  2. jcsd
  3. May 5, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Looks good to me.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: A question regarding power and hookes law
  1. Hooke's law question (Replies: 1)

  2. Hookes law question. (Replies: 6)

  3. Hooke's Law Question (Replies: 3)

Loading...