choose which statement describes a process in which an external force does positive work on the system. wonder woman is not part of the system.
A. The Flash uses his super speed to push a car forward.
B. Iron Man fires repulsor beams to accelerate his suit.
C. Superman exerts force to lift a heavy object into the air.
D. Thor swings his hammer, increasing its kinetic energy.
E. Captain America throws his shield, giving it translational motion.