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A body of mass (5 ± 0.5) kg is moving with a velocity of (20 ± 0.4) m/s. Its kinetic energy will be

1. (1000 ± 0.14) J
2. (500 ± 0.14) J
3. (500 ± 140) J
4. (1000 ± 140) J

Correct answer: (1000 ± 140) J

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