When a walking person lifts one foot off of the ground, which of these happens?
A. The body leans so that the center of gravity shifts over the foot that is on the ground.
B. The body leans so that the center of gravity shifts over the foot that is lifted off the ground.
C. The center of mass is left behind by the acceleration of the body, so the body must lean forward to compensate.
D. The body accelerates forward, but the center of gravity shifts over the foot that is lifted off the ground.
E. The body only accelerates forward, so the center of gravity remains directly between the two feet.
Answer: A
You might also like to view...
Tim runs 5 to 8 miles a day. He has an enlarged heart and low heart rate and blood pressure. He most likely has
A. coronary artery disease. B. atherosclerosis. C. a very healthy cardiovascular system. D. an arrhythmia.
Which of the following is a thin layer of smooth muscle just beneath the skin of the scrotum?
A. Raphe B. Cremaster C. Tunica vaginalis D. Dartos muscle E. Inguinal muscle
List two means of killing cancer cells remaining in the body after biopsy
What will be an ideal response?
The anterior communicating artery of the cerebral arterial circle connects the
A. vertebral arteries. B. posterior cerebral arteries. C. anterior cerebral arteries. D. basilar artery and the internal carotid artery. E. posterior communicating artery and the middle cerebral artery.