A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Babynini

  • one year ago

Help with force!

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

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

    a) weight= force x sin (angle) b) against= force x cos (angle)

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

    ^ thanks!! i'll let you know what answers i get :)

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

    ok

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

    weight = 139 force = 428 (both rounded of course)

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

    hrm that is not correct.

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

    1 Attachment
  8. Babynini
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    super huge numbers.

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

    The sum of forces in the x-direc are the component of weight in the x and friction: F_x = W*sin(12) - F_friction The frictional force is 430. F_x is 0 since the car is not moving. Solve for W. W = 2068 lbs The sum of forces in the y-direc are the component of the weight in the y and the normal force: The sum of the forces in the y is 0 because the car is not sinking or floating F_y = F_Normal - W*cos(12) F_Normal = 2068 *cos(12) = 2023 lbs. ---this is the force the car exerts on the driveway.

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

    ooki they give an example in the book. a) the magnitutde of the part of the force w that causes the car to roll down the driveway is |u|=component of w along u

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

    aah, sorry I didn't see you had already posted :P

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

    these last applies to the first too ;)

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

    soo how does this look with my given numbers?

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

    F_x = W*sin(18) - F_friction The frictional force is 450. F_x is 0 since the car is not moving. Solve for W. W = 1456 lbs The sum of forces in the y-direc are the component of the weight in the y and the normal force: The sum of the forces in the y is 0 because the car is not sinking or floating F_y = F_Normal - W*cos(12) F_Normal = 1456*cos(18) = 1385 lbs. ---this is the force the car exerts on the driveway.

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

    the force is 1385 and the weight is 1456?

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

    yay that's right :) thanks so much!!

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

    (how do we do we find out w*w?)

  18. 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.