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: Horse-Power Developed

  1. Aug 13, 2011 #1
    1. The problem statement, all variables and given/known data

    A motor car of mass 2 tons moves from rest with constant acceleration and acquires a velocity of 30 miles/hr in 30 seconds . Show that the horse-power developed by the engine during that time is 16.43 .

    2. Relevant equations

    Power = Work-done/Time taken

    3. The attempt at a solution

    I just can't get the answer to match . I keep getting values much larger than 16.43 !
     
  2. jcsd
  3. Aug 13, 2011 #2

    SteamKing

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Show us your calculations, and we can help you.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook