You Are Falling from Your Tree House

Multiple Choice

You are falling from your tree house. Which of these actions could slow the fall? Ignore the effects of air resistance.

A) You can rotate and slow linear motion by increasing rotational motion.
B) You can stretch your body abruptly upward to change the motion of the centre of the mass.
C) You can stretch your body abruptly sideways to change the motion of centre of the mass.
D) No internal forces can change the motion of the centre of the mass.