What is the difference in radius between the first and second lanes? Class 9
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What is the difference in radius between the first and second lanes? Class 9
Question 1.
What is the difference in radius between the first and second lanes? Class 9
Use the figure to find the stagger needed by the runner in the second lane. Will an equal stagger be needed between the third and second lanes?
Answer:
The width of each lane of the track is 1.22 m.
Since the lanes are equally spaced, the radius of the second lane is greater than that of the first lane by 1.22 m.
The straight portions of all the lanes are equal in length, so the extra distance arises only due to the curved path. The two curved portions are semicircular in shape and together form one complete circle.
Therefore, the additional distance covered in the second lane is equal to the circumference of a circle whose radius is 1.22 m.