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140. A body of mass 2 kg is moving with a velocity 8 m/s on a smooth surface. If it is to be brought to rest in 4 seconds, then the force to be applied is v elat (a) 8N (b) 4N .uar (c) 2N (d) IN tot as%245 ad af nandulum (min ... 9 dulum in a station 1.6 1:4 marta

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