A racehorse cannot stand on one leg, but when it runs it rarely has more than one leg on the ground. Why is a running horse more stable than a standing one?
A) Its legs tilt so the hooves fall in line with its center of gravity.
B) Its momentum gives it stability.
C) It uses its neck for balance the way a tightrope walker uses a pole.

Question

Quizplus · Accepted Answer

A running horse is more stable than a standing one because its momentum gives it stability. As the horse moves forward, its legs support the weight of its body in turn, creating a cyclical motion that allows the horse to maintain balance. In addition, a running horse's muscles, tendons, and ligaments work together to absorb the impact of each footfall and adjust the horse's position accordingly, further contributing to its stability.

A Racehorse Cannot Stand on One Leg, but When It