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The roadway of a bridge over a canal is in the form of a circular arc of radius 18 m. What is the greatest speed with which a motor cycle can cross the bridge without leaving ground.

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  1. 18 × 9.8 m/s  
  2. 18 / 9.8 m/s  
  3. square root of 18 cross times 9.8 end root m divided by s  
  4. square root of 98 m/s  

    Answer:The correct answer is: square root of 18 cross times 9.8 end root m divided by s

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