If one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.
MOMENTUM = Mass × Velocity
The unit for momentum is kilogram-meters per second (kg∗ms/s). Like velocity and acceleration, momentum is described by its direction as well as its quantity.
Law of Conservation of Momentum
The total momentum of any group of objects remains the same unless outside forces act on the object.
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