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: Calculating Work Conceptual Question

  1. Oct 23, 2008 #1
    1. The problem statement, all variables and given/known data
    A certain amount of work Wo is required to accelerate a car from rest to a speed v. How much work is required to accelerate the car from rest to v/2?

    2. Relevant equations
    W = Fd

    3. The attempt at a solution
    I know that if we were finding the distance instead of velocity, then the answer would be
    Wo/2, but I'm not sure if the force is the same for each situation. If it is, then I assume that the answer would also be Wo/2.
  2. jcsd
  3. Oct 23, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    What makes you think the distance would be 1/2?

    What does the Work-Energy theorem tell you?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook