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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(3 \sqrt{2} v\) | 2. | \(v\) |
3. | \(\sqrt{2} v\) | 4. | \(2 \sqrt{2} v\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn object flying in the air with velocity \((20 \hat{i}+25 \hat{j}-12 \hat{k})\) suddenly breaks into two pieces whose masses are in the ratio of \(1:5.\) The smaller mass flies off with a velocity \((100 \hat{i}+35 \hat{j}+8 \hat{k})\). The velocity of the larger piece will be:
1. \( 4 \hat{i}+23 \hat{j}-16 \hat{k}\)
2. \( -100 \hat{i}-35 \hat{j}-8 \hat{k} \)
3. \( 20 \hat{i}+15 \hat{j}-80 \hat{k} \)
4. \( -20 \hat{i}-15 \hat{j}-80 \hat{k}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle of mass \(5m\) at rest suddenly breaks on its own into three fragments. Two fragments of mass \(m\) each move along mutually perpendicular directions with speed \(v\) each. The energy released during the process is:
1. \(\frac{3}{5}mv^2\)
2. \(\frac{5}{3}mv^2\)
3. \(\frac{3}{2}mv^2\)
4. \(\frac{4}{3}mv^2\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology