Lesson 1: b Momentum and Impulse Connection
B
- An unbalanced object always accelerates an object- either speeding it up or slowing it down
- Impulse = change in momentum
- In a collision, an object experiences a force for a specific amount of time that results in a change in momentum. The result of the force acting for the given amount of time is that the object's mass either speeds up or slows down (or changes direction). The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v.
- A rebound is a special type of collision involving a direction change in addition to a speed change. The result of the direction change is a large velocity change.