Question

An athlete completes one round of a circular track of radius 2m in 40 sec. Find his displacement at the end of 2 min 20 sec​

Answer 1

Answer:

correct answer is 2R

Step-by-step explanation:

If athlete completes one round of a circular track of radius R in 40 seconds then after 2 m 20 sec =140 sec he would have completed 3.5 rounds that means he will be at the diametrically opposite point of starting point.

Displacement =diameter=2R

Answer 2

Answer:

Correct answer is 2R

If athlete completes one round of a circular track of radius R in 40 seconds then after 2 m 20 sec =140 sec he would have completed 3.5 rounds that means he will be at the diametrically opposite point of starting point.

Displacement =diameter=2R

Step-by-step explanation:

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