a vector quantity defined as the product of an object
s mass and
Momentum describes an objects motion
p = mv
The direction of the momentum is the direction of the velocity.
The SI units are kilogram-meters per second (kg-m/s)
A change in momentum
for a constant external force, the product of the force and the time over
which it acts on an object.
p = m(vf –v0)
In soccer for example
when the ball is moving very fast the player must exert a
large force over a short time to change the ball
s momentum and quickly bring the
ball to a stop.
Stopping times and distances depend on the impulse-momentum theorem.
A change in momentum over a longer time
requires less force
is something you have – you are happy, sad, angry, etc. – it is a
of your current state of being
In the same way, momentum
something that an object has – it is a characteristic of its current physical state