Question

Que is. The principle of Conservation of Momentum states that Linear Momentum of a system.
(a) Can not be changed
(1) can not remain constant
(c) can be changed only if internal forces act.​

Answer 1

Explanation:

The principle of conservation of linear momentum states that the linear momentum of a system can be changed only if external forces acts on it.

Answer 2

Answer:

cannot be changed

Explanation:

it doesn't change, it can only become something else.

your linear momentum is lost and gets conveyed into heat and also has to oppose frictional and drag force