A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

The amount of work done by two boys who apply 240 N of force in an unsuccessful at- tempt to move a stalled car is 1. 480 N · m. 2. 480 N. 3. 240 N · m. 4. 0. 5. 240 N.

  • This Question is Closed
  1. JamesJ
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    By definition Work = (Force) x (Displacement in direction of applied force) In this case, the boys apply a force, but the displacement from that force is zero, hence Work = (142 N) x (0 m) = 0 N.m = 0 J , by definition of Joules, J = N.m

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    go to http://www.physicsclassroom.com/

  3. unicorn
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes the ans is definitely zero but let me explained it in detail why boys get tired though the work done is still zero actually work is not zero to be precise but they all go some in elastic potential energy of body and some doing work against friction but the net displacement is zero but there energy is consumed as said above and W=∫F.Ds not able to write vector sign sorry!!!!!!!!!!!!

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.