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A bullet of mass 200 g having initial kinetic energy 90 J is shot inside a long swimming pool as shown in the figure. If it’s kinetic energy reduces to 40 J within 1 s, the minimum length of the pool, the bullet has to travel so that it completely comes to rest is Water Pool

1. 45 m
2. 90 m
3. 125 m
4. 25 m

Correct answer: 45 m

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