Page 35 - Science Course 2 (Book 2)
P. 35
Mo8-L4b: What is the Law of Conservation of Momentum?
Momentum Equation
An object’s momentum is in the same direction as its Conservation of Momentum
velocity.
According to the law of conservation of momentum,
According to Newton’s f rst law, if the net force on an the total momentum of a group of objects stays the
object is zero, neither its velocity nor its momentum same unless outside forces such as friction act on
change.
the objects.
Because momentum is the product of mass and
velocity, the force on an object equals its change in
momentum.
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