A) Zero
B) 2R
C) \[2\pi R\]
D) \[7\pi R\]
Correct Answer: B
Solution :
Total time of motion is 2 min 20 sec = 140 sec. As time period of circular motion is 40 sec so in 140 sec. athlete will complete 3.5 revolution i.e., He will be at diametrically opposite point i.e., Displacement = 2R.
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