Question Help???

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    • #47475
      Profile photo of Andrew Normand

      Hi All can anyone explain to me how you get the answer to Q14 for the OCR Modelling physics paper (set 2) the 2nd practice paper they released. The question is:

      Q14 modelling physics

      The answer according to the markscheme is A. I can get B but cannot work out how they have A as the answer. Please help??

    • #47476
      Profile photo of Andrew Normand

      I agree with you, the answer should be B.

    • #47479
      Profile photo of Andrew Normand

      I got B as well. To get A, they used 1 year instead of 1 day for T. If you calculate \frac{2\pi}{365\times24\times60\times60} = 1.99\times 10^{-7}. So that is the error.

    • #47480
      Profile photo of Andrew Normand

      Thank you both Matt for clarifying precisely why its wrong and Luke for also helping me feel confident I’m not just losing the plot! Cheers both

    • #47481
      Profile photo of Andrew Normand

      Good spot, Matt. I couldn’t figure out what they’d done.

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