Tightrope walkers walk with a long flexible rod in order to
A. increase their total weight.
B. allow both hands to hold onto something.
C. lower their center of mass.
D. move faster along the rope.
Answer:C
Tightrope walkers walk with a long flexible rod in order to
A. increase their total weight. B. allow both hands to hold onto something. C. lower their center of mass. D. move faster along the rope.