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geerky42

  • 2 years ago

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.

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  1. geerky42
    • 2 years ago
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  2. geerky42
    • 2 years ago
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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?

  3. ndwelsh
    • 2 years ago
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    reported abusive - CHEATING !!!!

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

  5. geerky42
    • 2 years ago
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    And my way doesn't work.

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

  7. ndwelsh
    • 2 years ago
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    everything else is on the side. Understood?

  8. ndwelsh
    • 2 years ago
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    are you learning physics or building problem solving skills?

  9. geerky42
    • 2 years ago
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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?

  10. geerky42
    • 2 years ago
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    Both...?

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

  12. Yahoo!
    • 2 years ago
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    hey @greeky42 he is just trolling just ignore him

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

  14. ndwelsh
    • 2 years ago
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    that's concern #1

  15. ndwelsh
    • 2 years ago
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    do not assume for me. Is that clear?

  16. geerky42
    • 2 years ago
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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.

  17. Yahoo!
    • 2 years ago
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    \[W = \Delta K.E\]

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

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

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

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

  22. geerky42
    • 2 years ago
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    My knowledge* Better, knowledge nazi?

  23. Callisto
    • 2 years ago
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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.

  24. ndwelsh
    • 2 years ago
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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?

  25. ndwelsh
    • 2 years ago
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    @Callisto - who am I talking to now?

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

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

  28. Yahoo!
    • 2 years ago
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    \[W=F.S.\cos \theta \]

  29. geerky42
    • 2 years ago
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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.

  30. Yahoo!
    • 2 years ago
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    Or another way to approach this is find accl

  31. ndwelsh
    • 2 years ago
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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.

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

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

  34. geerky42
    • 2 years ago
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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.

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

  36. ndwelsh
    • 2 years ago
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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?

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

  38. geerky42
    • 2 years ago
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    @ndwelsh Delight me.

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