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!

Homework Help: Bicycle Problem

  1. Apr 24, 2007 #1
    1. The problem statement, all variables and given/known data
    What power must a man of mass 85kg have to bicycle 850m up a hill, inclined at 5.2 degrees to the horizontal, at a constant speed of 15.6 m/s? The force of friction on the man and the bicycle is 175N parallel to the incline.

    2. Relevant equations
    W=delta E

    3. The attempt at a solution
    I do not know where to start because i do not know the mass of the bicycle.
  2. jcsd
  3. Apr 24, 2007 #2
    I think you can neglect the mass of the bicycle. To be on the safe side though, just pick a variable to represent the mass of the bicycle and proceed.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook