©
Dr. Steve Rapp,
2004
u
mVi + m’V’i = mVf + m’V’f
u
V’f =
mVi + m’V’i - mVf
m’
V’f = .25 kg (.20m/s) + .10 kg (.10 m/s) - .25kg (.14 m/s)
.10 kg
V’f = .05 m/s + .01 m/s - .035 m/s
=
-.25 m/s
East
.10