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A body starts from rest and has an acceleration 20 cm-s-2 what is the distance covered by the body in first 5 s? A) 160 cm B) 640 cm C) 1280 cm D) 1640 |
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Answer» 640 cmExplanation:CORRECT option B. 640 cmGiven INITIAL velocity , u=0a=20 CM/s² from second EQUATION of motion s=ut +½at²s=0×8 + ½20× 8 = 640 cm |
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