Initial momentum of the first object
p1b =
Change of velocity
vf – vi
Final momentum of the second object.
p2a
Caused by an impulse.
Equal in amount to FΔt.
pf – pi
m(vf – vi)
mΔv
The momentum of two connected objects.
(m1 + m2)v
Two combined masses multiplied by their velocity.
Combined mass of two objects.
Two objects stuck together.
Net momentum
p1 + p2 + p3 …
Adding up the momentum of each object.
m1v1 + m2v2 + m3v3 …
Net kinetic energy.
Ek1 + Ek2 + Ek3 …
Add up all of the kinetic energies in the system.