Assignment:
Two particles, of mass 1 kg and 3 kg, are traveling towards each other with velocities of 100 m/s and -40 m/s respectively. Using the laws of physics (e.g. conservation of energy & momentum) calculate the following:
a) What are the initial energies of the particles?
b) What are the final velocities of the particles?
c) Which particle gained energy, and which lost energy?