6.4 CHAPTER 6. MOTIONIN TWO DIMENSIONS
(a) Calculate the final velocity of the truck-car combination after the collision.
(b) Determine the kinetic energy of the systembefore and after the collision.
(c) Explain the difference in your answers for b).
(d) Was this an example of an elastic or inelastic collision? Give reasons for
your answer.- Two cars of mass 900 kg each collide andstick together at an angle of 90◦.
Determine the final velocity of the cars if
car 1 was travelling at 15m·s−^1 and
car 2 was travelling at 20m·s−^1.
220 m· s−^115 m· s−^11?1+2More practice video solutions or help at http://www.everythingscience.co.za(1.) 01s4 (2.) 01s5Extension: Tiny, Violent Collisions
Author: Thomas D. GutierrezTom Gutierrez receivedhis Bachelor of Science and Master degreesin
Physics from San Jose State University in his home town of San Jose, California.
As a Master’s student he helped work on a laser spectrometer at NASAAmes
Research Centre. The instrument measured the ratio of different isotopes of
carbon in CO 2 gas and could be used for such diverse applications as medical
diagnostics and space exploration. Later, he received his PhD in physics from