A ball with a mass of #2 kg # and velocity of #4 m/s# collides with a second ball with a mass of #5 kg# and velocity of #- 6 m/s#. If #20%# of the kinetic energy is lost, what are the final velocities of the balls?
1 Answer
Jan 20, 2018
The final velocities are
Explanation:
We have conservation of momentum
The kinetic energy is
Therefore,
and
Solving for
Solving this quadratic equation in