A particle moves along an x axis. Its velocity changes from v=-3m/s to v=-2 m/s.

  1. The kinetic energy increases and positive work is done.
  2. The kinetic energy increases and negative work is done.
  3. The kinetic energy stays the same and zero work is done
  4. The kinetic energy decreases and negative work is done
  5. the kinetic energy decreases and postive work is done.