Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

j30lex10

  • 3 years ago

Hooke's Law. The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 23 cm when the weight is 3 kg, what is the distance when the weight is 5 kg? I need the answer badly and I do not understand the problem.

  • This Question is Closed
  1. ashwinram
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    distance d is directly proportional to weight w so, d = k * w (where k is some constant you don't know yet)

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

    when d = 23, w = 3 so, 23 = k * 3 which means k = 23/3

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

    now, you have to find d when w = 5 d = k * w = 23/3 * 5

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

    another way of thinking about it: 3 kg stretches the spring by 23 cm so 5 kg will stretch it even more

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

    3 kg stretches it by 23 cm in other words, each kg stretches it by 23/3 cm so, 5 kg will stretch it 5 times that much = 5 * 23/3

  6. j30lex10
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thanks

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

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.