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[" A body travels "200cm" in the first t...

[" A body travels "200cm" in the first two "],[" seconds and "220cm" in the next "4" sec with "],[" deceleration.The velocity of the body at the "],[" end of the "7^(" th ")" second is "],[[" (A) "5cm/s," (B) "10cm/s],[" (C) "15cm/s," (D) "20cm/s]]

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