Question

Rahul, an athlete, completes one round of a circular track of diameter 200 min 40 What will be the distance
covered at the end of l min 10s?​

Answer 1

Answer:

Time taken by athlete to complete one round = 40 seconds. Distance covered = ?? Displacement = ?? Hence, the distance covered at the end of 2 min 20 seconds is 22000 m or 22 km.

Explanation:

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Answer 2

Answer:

1099.7 metres

Explanation:

Given:

• Diameter of the circular track = 200 metres
• One round of circular track is covered in time = 40 seconds

To find:

• Distance at the end of 1 minute 10 seconds

radius of the track = diameter / 2 = 100 metres

Circumference of the circular track = 2πr

Circumference = 2×$\frac{22}{7}$×100

Circumference = 628.57 metres

Speed of athlete = distance / time

Speed = 628.57/40

Speed = 15.71 m/s

1 minute 10 seconds = 70 seconds

Distance = speed×time

distance = 15.71×70

Distance = 1099.7 metres

The distance covered is equal to 1099.7 metres