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geerky42

Two blocks (with masses 20.5 kg and 68 kg) are connected by a string as shown. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block and machine is 0.257. Find the change in the kinetic energy of the block on the incline as it moves a distance of 15.4 m up the incline if the system starts from rest.

  • one year ago
  • one year ago

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  1. geerky42
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    • one year ago
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  2. geerky42
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    first, I have to set up equation for sum of force, find net force, then multiply it by the distance, right?

    • one year ago
  3. ndwelsh
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    reported abusive - CHEATING !!!!

    • one year ago
  4. geerky42
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    How is that cheat? I'm looking for a way to solve this problem.

    • one year ago
  5. geerky42
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    And my way doesn't work.

    • one year ago
  6. ndwelsh
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    So, report that problem as something you didn't solve

    • one year ago
  7. ndwelsh
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    everything else is on the side. Understood?

    • one year ago
  8. ndwelsh
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    are you learning physics or building problem solving skills?

    • one year ago
  9. geerky42
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    I just need help, I can't figure out how solve this problem... Thats why I am here... Isn't it what Openstudy is for?

    • one year ago
  10. geerky42
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    Both...?

    • one year ago
  11. ndwelsh
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    you can't cheat, this has to be stopped. Ask this question out of your knowledge of theory.

    • one year ago
  12. Yahoo!
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    hey @greeky42 he is just trolling just ignore him

    • one year ago
  13. ndwelsh
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    speak to me directly, like this: Aren't you trolling now?

    • one year ago
  14. ndwelsh
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    that's concern #1

    • one year ago
  15. ndwelsh
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    do not assume for me. Is that clear?

    • one year ago
  16. geerky42
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    And my theory is apparently wrong, and I don't know why. And it's isn't cheating. You are obviously trolling, just like Yahoo! said.

    • one year ago
  17. Yahoo!
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    \[W = \Delta K.E\]

    • one year ago
  18. Yahoo!
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    intial K.E is 0 brcoz the body was at rest..)

    • one year ago
  19. ndwelsh
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    It's not *YOUR* theory, it's your knowledge.

    • one year ago
  20. ndwelsh
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    so, it's knowledge which is wrong, theory is always there.

    • one year ago
  21. geerky42
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    @Yahoo! And \[W = x \sum F\] right?

    • one year ago
  22. geerky42
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    My knowledge* Better, knowledge nazi?

    • one year ago
  23. Callisto
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    Sorry to interrupt. I think it's better to stop the discussion on cheating here. And also, it's okay to seek help for your homework, as long as you're looking for a way to learn how to do it, not just copying others work. @ndwelsh I think we'd better have a private talk.

    • one year ago
  24. ndwelsh
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    what is fun about substituting numbers to formulas? Aren't you striving for better degree? What are you supposed to learn? Physics, elementary principles of expressions and variables?

    • one year ago
  25. ndwelsh
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    @Callisto - who am I talking to now?

    • one year ago
  26. Yahoo!
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    nw ur job is to Find Work done..By the Body on incline

    • one year ago
  27. ndwelsh
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    Whatever you are trying to achieve in the future will unfold improperly. MARK MY WORDS NOW, bunch of puppets

    • one year ago
  28. Yahoo!
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    \[W=F.S.\cos \theta \]

    • one year ago
  29. geerky42
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    @ndwelsh Like, you think I take physics for absolutely no reason? Sure... And you are here, trolling and claiming everyone is cheating... I think your life has been unfolded improperly.

    • one year ago
  30. Yahoo!
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    Or another way to approach this is find accl

    • one year ago
  31. ndwelsh
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    Hold on there horse, don't you say "trolling" regarding my name any more? It's your stupid cheating Wikipedia type of philosophy that explains your inadequacy better than my life.

    • one year ago
  32. ndwelsh
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    answer now, what's wrong about using reference books better than theory books?

    • one year ago
  33. ndwelsh
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    Apparently I'm more knowledgable in this topic than you are

    • one year ago
  34. geerky42
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    Yet, I don't need you, fortunately. There are knowledgable beings who are wise enough not to troll in this site and are willing to help others. What about you? Answer now. What do you do with your life? Trolling? Well, that's pathetically sad. Beside you are wasting your time.

    • one year ago
  35. geerky42
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    @Yahoo! How can I find acceleration? its seems that there is not enough information.

    • one year ago
  36. ndwelsh
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    discussing my life at this point seems to be more off the topic. --- THAT'S FOR ADMINS TO TAKE NOTE don't you SPIT THAT POISON IN MY FACE, fraking DOLL?

    • one year ago
  37. ndwelsh
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    JUST GET THAT, CHEATER - BECOME PUNISHED FOR THAT IN FUTURE

    • one year ago
  38. geerky42
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    @ndwelsh Delight me.

    • one year ago
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