Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Probably really easy

  1. Oct 16, 2006 #1
    A block of mass m1 = 280 g is at rest on a plane that makes an angle = 30° above the horizontal (Figure 5-41). The coefficient of kinetic friction between the block and the plane is µk = 0.1. The block is attached to a second block of mass m2 = 210 g that hangs freely by a string that passes over a frictionless and massless pulley. When the second block has fallen 30 cm, its speed is?

    How do I solve this
     
  2. jcsd
  3. Oct 16, 2006 #2

    radou

    User Avatar
    Homework Helper

    Hint: find the tension in the string caused by the motion of block 1.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook