The centre of gravity of a sprinter during the race lies

Solution

Running is a means of terrestrial locomotion allowing humans and other animals to move rapidly on foot. It is simply defined in athletic terms as a gait in which, at regular points during the running cycle, both feet are off the ground. This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight, and the center of gravity vaults over the legs in an inverted pendulum fashion.