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

Bobsled physics problem

  1. Jan 28, 2007 #1
    1. The problem statement, all variables and given/known data
    The coefficient of kinetic friction for a 26-kg bobsled on a track is 0.13. What force is required to push it down a 4.1° incline
    and achieve a speed of 7.0E1.0 km/h at the end of 73 m?

    2. Relevant equations
    Force friction=F*k

    And just sum of forces=0

    3. The attempt at a solution
    I'm lost...
  2. jcsd
  3. Jan 28, 2007 #2
    So this is two problems rolled up into one. On one hand you need to figure out what acceleration will let you reach a speed of 70 km/h after traveling 73 m, and then you will also need to figure out what force when summed against the frictional force will provide that acceleration.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook