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Year 11: Centripetal Acceleration/Force "Challenging" questi

  • Thread starter jstretto
  • Start date
  • #1
jstretto

Homework Statement


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?

Homework Equations


Centripetal Force and acceleration

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!
 

Answers and Replies

  • #2
jstretto
Solved. I interpreted the free-force diagram I drew wrong, placing the opp/adj in the wrong place, lool.
 

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