In: Physics
A skydiver jumps out of an airplane at a high altitude and
reaches terminal speed.
Which of the following statements about the falling skydiver at
terminal speed is FALSE?
1) The gravitational potential energy of the
skydiver-Earth-atmosphere system is decreasing.
2) The thermal energy of the skydiver-Earth-atmosphere system is
increasing.
3) The air resistance force does negative work on the
skydiver.
4) At terminal speed, the kinetic energy of the skydiver is
constant.
5) The gravitational force on the skydiver must be larger than the
air resistance force in order to maintain a downward velocity.