BRAINCAKENewton's Second Law of Motion
The resultant force acting on an object is directly proportional to the rate of change of momentum and is in the same direction. The momentum of an object is the product of its mass and velocity.
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Key terms in this lesson
- resultant
- The single force or vector that has the same effect as two or more forces or vectors acting together.
- velocity
- The rate of change of displacement of an object; speed in a given direction.
- acceleration
- The rate of change of velocity of an object.
- linear momentum
- The product of an object's mass and its velocity.
More in Momentum
- Newton's First Law of Motion.
- Newton's Third Law of Motion
- The Four Fundamental Forces
- Linear Momentum
- Conservation of Momentum
- Explosions vs Collisions
- Elastic and Inelastic Collisions
- Air Bags
All 14 lessons in Momentum · All OCR AS-level Physics topics