BRAINCAKENewton's Second Law of Motion
Momentum is the product of an object's mass and velocity, p = mv.
A resultant force acting for a time changes an object's momentum: the change in momentum equals the force x the time the force acts for. For example, a moving object's momentum equals the force needed to bring it to rest x the time that force acts for.
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All 9 lessons in Momentum · All Edexcel AS-level Physics topics