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Homework Help: Year 11: Centripetal Acceleration/Force "Challenging" questi

  1. Jul 21, 2017 #1
    1. The problem statement, all variables and given/known data
    Hey there :), I am in year 11 and my teacher has assigned me with this "challenging question".

    12. A motorcyclist leans his machine over so that it makes an angle of 55 degrees with the surface of the track as he negotiates a corner.
    a.) If (due to the treat on his tyres and track conditions) he is able to safely do this up to a maximum speed of 100 km h^-1, what is the smallest radius of curvature that the corner can have?

    2. Relevant equations
    Centripetal Force and acceleration

    3. The attempt at a solution
    I rearranged tan(theta)= v^2/gr
    to make r the subject.

    But the answer is completely different to what the textbook says is the answer.
    Answer: 112m

    Any help would be greatly appreciated, I really want to do well in physics this term!
  2. jcsd
  3. Jul 21, 2017 #2
    Solved. I interpreted the free-force diagram I drew wrong, placing the opp/adj in the wrong place, lool.
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