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True.
It's the mass of a object on its velocity (the velocity is a vector and as result of multiplication of a scalar (mass) on a vector (velocity) you get a vector (momentum). Intuitively, momentum is the property of a body which enables it to resist a force.
Conservation of momentum means that momentum is a constant and the change of momentum or force is zero.
The definition of impulse is change in momentum, how is there CHANGE in an instant? Or you are asking the instantaneous MOMENTUM, then it's the mass of the object times its speed. Or you are asking the CHANGE in momentum, impulse, after a specific time. If the average force applied to the mass is given, it's force times change in time. If a change in Force is observed, you have to integrate. If there is NO force applied, then the change in momentum is none.
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Yes.
True.
In symbols, linear momentum p is defined to be p = mv, where m is the mass of the system and v is its velocity. The SI unit for momentum is kg ยท m/s. Newton's second law of motion in terms of momentum states that the net external force equals the change in momentum of a system divided by the time over which it changes.
Strictly speaking, you would say that a force acts on a system and the impulse of that force corresponds to the change in momentum of the system due to the action of the force. More mathematically, the impulse of a force is defined as the integral of that force with respect to time over the time period that the force acts.
Change of the body's momentum = (force on the body) x (length of time the force acts on it)
Change of the body's momentum = (force on the body) x (length of time the force acts on it)
Change of the body's momentum = (force on the body) x (length of time the force acts on it)
That is only possible by an outside force - a force from outside the system. The type of force is not important, but it must come from the outside.
It's the mass of a object on its velocity (the velocity is a vector and as result of multiplication of a scalar (mass) on a vector (velocity) you get a vector (momentum). Intuitively, momentum is the property of a body which enables it to resist a force.
Conservation of momentum means that momentum is a constant and the change of momentum or force is zero.
No. Newton's first law of motion states that the momentum of a system is conserved as long as there's no external force being applied on the system.