Studied by 0 people
Looks like no one added any tags here yet for you.
Object with more momentum requires more time or more force to stop.
Newto’s Third Law
Haystack because if the change in momentum occurs over long time, the change is small
If you were in a car that is out of control, would you rather hit a concrete wall or a haystack?
Vector
Momentum is a ?? because it has magnitude and direction
If it were just magnitude it would be scalar
impulse is magnitude
Momentum
It is a measure of how hard it is to stop an object
Impulse
is a force over a period of time
elastic collisions
– kinetic energy is conserved in addition to momentum
inelastic collisions
–only momentum is conserved, NOT energy (lost to heat or deformation)
Perfectly inelastic collisions
– objects stick together; only momentum is conserved (energy lost to heat or deformation)
Law of conservation of momentum
: the momentum of a system remains constant in a closed, isolated system
