1-D Example, cont.
(1/2)m1v1i2 + (1/2)m2v2i2 =
(1/2)m1v1f2 + (1/2)m2v2f2 + Elost
Elost = (1/2)*(.005 kg)*(324 m/s)2 -
(1/2)(.005 kg + .400 kg)*(4 m/s)2 =
259.20 Joules. Note that almost all of the initial energy [total initial energy = (1/2)m1iv1i2 = 262.44 Joules)] went into denting the wood block!