A boy completes one round of a circular track of
radius 20 m in 50 seconds. The displacement at
the end of 4 minute 10 second will be
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Answer:
0
Step-by-step explanation:
50seconds = 2π×20
1 second = 40π÷50
250second = (40π×250)÷ 50
=200π
No. of revolutions = 200π÷(2×π×20)
=5
displacement =0
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