Bart and Nelson challenged each other to a bumper car game.Bart, whose car had a mass of 120 kg (with him in it), traveledwest at a velocity of 9 m/s. Nelson and his car had a total mass of150 kg traveled a velocity of 7 m/s east, heading towards Bart. Thetwo had a head-on collision. Use the frame of reference in whichthe east is positive.
a) If Bart left the collision at a velocity of 7 m/s east, whatvelocity did Nelson leave with?
b) Determine the total kinetic energy for Bart and Nelson beforethe collision. Determine the total kinetic energy after thecollision.
c) Instead of heading towards each other, Bart was going 9 m/seast following behind Nelson, whose velocity is still 7 m/s east.At what velocity would Bart travel at after the collision if Nelsonleft the collision with a velocity of 7 m/s east?
