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
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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