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| Q. |
A jet engine works, on the principle of conservation of - |
| A. | linear momentum |
| B. | angular momentum |
| C. | energy |
| D. | mass |
| Answer» A. linear momentum | |
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Explanation: Linear momentum is a vector quantity defined as the product of an object's mass, m, and its velocity, v. Linear momentum is denoted by the letter p and is called “momentum” for short: Note that a body's momentum is always in the same direction as its velocity vector. |
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