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  1. hellodjfos;s'ff

    Physics: Post your doubts here!

    Don't remember the option either
  2. hellodjfos;s'ff

    Physics: Post your doubts here!

    Yup I got these.
  3. hellodjfos;s'ff

    Physics: Post your doubts here!

    Tell me a few details about the question?
  4. hellodjfos;s'ff

    Physics: Post your doubts here!

    It had a hill shape.
  5. hellodjfos;s'ff

    Physics: Post your doubts here!

    And I kept the center of the springboard the pivot so that the weight of the springboard would be taken out/ruled out of the question.
  6. hellodjfos;s'ff

    Physics: Post your doubts here!

    Ok what I did was, I used my ruler as the spring board and put one pencil below the rule and the other one above the ruler. That's how I understood they had moment in the opposite direction. You can test i out right now, use your finger as the spring board(if you want).
  7. hellodjfos;s'ff

    Physics: Post your doubts here!

    I can't remember the option but it was the diagram with a parallel circuit in which the direction of the diodes was same.
  8. hellodjfos;s'ff

    Physics: Post your doubts here!

    A for stationary wave(the option with first wavelength being 2L/1). B for the rods moment question since one rod has a clockwise moment while the other rod had an anticlockwise moment(weight of the man had a clockwise moment which was decreasing since he was getting closer to pivot).
  9. hellodjfos;s'ff

    Physics: Post your doubts here!

    If you're talking about the vertical and horizontal force one, it was C(zero horizontal force, constant vertical force).
  10. hellodjfos;s'ff

    Physics: Post your doubts here!

    Yup I got D as well. Thank god because I didn't have much time to do that question.
  11. hellodjfos;s'ff

    Physics: Post your doubts here!

    The answer was B. It was the shape of a filament lamp(when it's an IV graph).
  12. hellodjfos;s'ff

    Physics: Post your doubts here!

    What was the answer for the elastic energy per unit volume? I know it's a repeat question but I forgot the answer for it :(
  13. hellodjfos;s'ff

    Physics: Post your doubts here!

    Which questions were tough for you?
  14. hellodjfos;s'ff

    Physics: Post your doubts here!

    Paper was relatively easier to previous summer papers. There were many repeat questions...
  15. hellodjfos;s'ff

    Physics: Post your doubts here!

    That was the speed time graph shape for one of the questions. The displacement time graph for question was a reflection of this graph you made
  16. hellodjfos;s'ff

    Physics: Post your doubts here!

    Use the formula we use in maths mechanics paper. Wd by object-wd by air resistance=KE gain-GPE loss
  17. hellodjfos;s'ff

    Physics: Post your doubts here!

    For equilibrium, clockwise moments=anticlockwise moments 20(0.4)=10(0.6)+100(0.1) 8=16 You can clearly see that there is a lack of moment for clockwise, so the 20N weight must be placed towards the right side of the pivot. Also, there's a lack of 8Nm moment, so the 20N weight must have a moment...
  18. hellodjfos;s'ff

    Physics: Post your doubts here!

    Yeah good luck to all
  19. hellodjfos;s'ff

    Physics: Post your doubts here!

    You guys asked lots of questions over the last couple of pages and I can't do them all... just tell me which tough ones you want explained as soon as possible.
  20. hellodjfos;s'ff

    Physics: Post your doubts here!

    There's no legit reasoning for this. The most you can do is use a few numbers to test out which equation is correct.
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