A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • 4 years ago

Does a lever always do as much work on the load as you do on the lever?

  • This Question is Closed
  1. JamesJ
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Ignoring friction, air resistance etc. ... yes. By the Work-Energy theorem, any change of energy of a system comes about by work being done on the system. If the lever didn't do the same amount of work as you did on the lever, energy would be created or destroyed. This would violate a fundamental principle in physics: The Conservation of Energy.

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

    A lever trades distance for force. From the definition of work, \[W = F*d\]So if we want to move a 10 N object 1 meter, we can set up a lever that requires 10 m of travel and 1 N of input force.

  3. 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...


  • 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.