MCQOPTIONS
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| 1. |
A body of mass 1 kg initially at rest, explodes and breaks into three fragments of masses in the ratio 1:1:3. The two pieces of equal masses fly off perpendicular to each other with a speed of 30 m/s each. What is the velocity of the heavier fragment? |
| A. | 10 m/s |
| B. | 20 m/s |
| C. | \[10\sqrt{2}\,\,m/s\] |
| D. | \[20\sqrt{2}\,\,m/s\] |
| Answer» D. \[20\sqrt{2}\,\,m/s\] | |