Tomorrow hand in this homework

2007-09-11 2:34 am
MUST EXPLAIN THE ANSWER YOU CHOOSE OR WRITE.

1. Which of the following statements about the distances travelled by objects and their displacements is correct?
A. The longer the distance travelled by objects, the greater are the magnitudes of their displacements.
B. The greater the magnitudes of displacements of objects, the longer the distances they travel.
C. The magnitudes of the displacements of objects can be greater than the distances travelled.

回答 (1)

2007-09-11 3:29 am
✔ 最佳答案
Answer is D
displacement involve distance and direction whilst distance traveled does not.
for example, you travel around the world from Hong Kong, when you come back to Hong Kong, the magnitude of displacement is 0, but the distance travel can be over millions of kilometer.


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