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Hi everyone, I answered incorrectly and still don't understand how to figure out the answer, despite TPR's provided reasoning. Please help.
Consider a quadruped of roughly the same mass and proportion as the human above (say, a large cat), with roughly the same time of contact of the foot with the ground and the same force exerted in the running limbs. Which of the following is true of bipeds and quadrupeds maintaining a steady run?
A)
The biped expends more energy in producing upward motion.
B)
The quadruped expends more energy in producing upward motion.
C)
The biped must use either more force or more time to bring limbs into position to break a fall.
D)
The biped exerts a greater force during the thrusting portion of the run.
Consider a quadruped of roughly the same mass and proportion as the human above (say, a large cat), with roughly the same time of contact of the foot with the ground and the same force exerted in the running limbs. Which of the following is true of bipeds and quadrupeds maintaining a steady run?
A)
The biped expends more energy in producing upward motion.
B)
The quadruped expends more energy in producing upward motion.
C)
The biped must use either more force or more time to bring limbs into position to break a fall.
D)
The biped exerts a greater force during the thrusting portion of the run.