A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

YumYum247

  • one year ago

zuzu!!!!!!

  • This Question is Closed
  1. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Abhisar for the first question this is what i did...

  2. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    first i figured out the normal force the earth was exerting the block of wood. Normal force = mass x gravity normal force = 0.72Kg X 9.80m/sec^2 Normal force = 7.05N This is my normal force.

  3. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    from here i used te frictional formula to get my force of friction. Force of friction = μk x 7.05N Force of friction = 4.51N i got my friction.

  4. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Nor that i ad my frictinal force and normal force. i plugged them into te formula to get my net force Applied force - frictional force = m x change in velocity/time Applied force - 4.51N = 0.72Kg x 0.8m/sec^2 Applied force = 4.51N + 0.57N Applied force = 5.08N HEre is te answer to my first question....

  5. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i just wanna know to find the net force of the block of wood..... my actual force is 5.08N and frictional force is 4.51N Therefore the net force would be 5.08N - 4.51N = 0.57N right?!?!?!

  6. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    net force = 0.57N?!?!?!?!

  7. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Actually the question says that table is smooth so that means frictional force will not act. In this case force on the block will solely due to the push of boy. Since, block has a velocity of 1.6 after 2 seconds, its acceleration will be 0.8 Therefore, Force = 0.72 x 0.8 = 0.576 N

  8. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but bay did you read the last part of the question....."the kinetic friction is 0.64.

  9. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    baby* "D

  10. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    It's fine if you want to consider the friction in. the answer will still be same.

  11. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok but to get the net force, do i subtract applied force from frictional force?!?!?!

  12. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i'm getting about the same answer so ....LOL

  13. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Net force = Applied Force - Frictional force.

  14. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thank you shooooooomuch i love you. :")

  15. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So, Applied Force = Net Force + Frictional force.

  16. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Note: In the first part we calculated the net force. In second part we calculated the frictional force Finally in the third part we calculate the applied force by adding net force and frictional force...

  17. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes yes yes!!! :"D

  18. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    c:

  19. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks honey, i appreciate your effort....!!

  20. 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.