A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • one year ago

The force F​ (in pounds) required to push a sofa across a floor varies directly as the weight w​ (in pounds) of the sofa. Complete parts​ (a) through​ (c) below. a. A person can push a 90​-pound sofa across a wood floor by pushing with a force of 25 pounds. Find an equation that describes the relationship between w and F. the answer is F=5/18w. then asks: How much force is required to push a 189​-pound sofa across a wood ​floor?

  • This Question is Closed
  1. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Next time put these questions in the physics section! But in any case, your problem says that \[\vec F ~~~~ \alpha ~~~ \vec W\] that means if you increase F by 100 the weight W will also increase by a 100. So the first part, lets go over it just in case, the reason \[F = \frac{ 5 }{ 18 } W\] is because the force used is 25 pounds on a weight of 90 pounds. Relating the two forces we get that the force applied is the same as 5/18 of the weight, so 25/90 = 5/18. Now you can apply this same formula to your next part.

  2. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You need to understand what the variable means, so weight (W) here is the 189 pound sofa

  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.