Two identical objects A and B fall from rest from different heights to the ground. Assume the air resistance can be neglected. If object B takes twice as long as object A to reach the ground, what is the ratio of the heights (hA/hB) from which A and B fell? 1
AhA/hB =
BhA/hB = 1/2
ChA/hB = 1/4正確答案
DhA/hB = 1/8 2
答案與詳解
