* Momentum (p) is the product of an object's mass (m) and velocity (v):
* p = m * v
* Units of momentum: kg * m/s (kilogram meters per second)
* Impulse (J) is the change in momentum of an object. It's also the product of force (F) and the time interval (Δt) over which the force acts:
* J = Δp = F * Δt
* Units of impulse: N * s (Newton seconds) or kg * m/s (kilogram meters per second)
Key Point: While both momentum and impulse can be expressed in kg * m/s, impulse is often expressed in N * s because it emphasizes the force and time involved.
