Define momentum and state its $SI$ unit. State the principle of conservation of momentum.
(N/A) Momentum is defined as the product of the mass of a body and its velocity. It is also known as the quantity of motion contained in a body. Its $SI$ unit is $kg \cdot m \cdot s^{-1}$.
The principle of conservation of momentum states that if no external force acts on a system, the total momentum of the system remains conserved (constant).
The principle of conservation of momentum states that if no external force acts on a system, the total momentum of the system remains conserved (constant).
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