Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Leleda
Leleda asked in Science & MathematicsPhysics · 3 years ago

Physics Question below (springs): Please help!?

A 380g block is firmly attached to a light horizontal spring. The block can slide along the table where the coefficient of friction is 0.30. The block is compressed 18cm and, when released, travels 17cm past the equilibrium point before stopping. What is the spring’s stiffness (spring constant)?

2 Answers

Relevance
  • Some Body
    Lv 7
    3 years ago
    Favorite Answer

    Potential energy in spring = work done by friction

    1/2 k x² = F d

    1/2 k (0.18 m)² = (0.380 kg * 9.8 m/s² * 0.30) * (0.18 m + 0.17 m)

    k = 24.1 N/m

  • oubaas
    Lv 7
    3 years ago

    m*g*μ*(x+d) = k/2*x^2

    k = 2*(0.38*9.806*0.30*0.35)/0.18^2 = 24.15 N/m

Still have questions? Get your answers by asking now.