thx so much!!
An automobile is travelling due east on an interstate highway ata constant velocity of 65 miles per hour. The unbalanced force acting on the car with respect to the highway is (a) toward the east, (b) toward the west, (c) directed vertically downward, (d) zero.
physics -urgent!
2007-03-11 8:52 pm
回答 (1)
2007-03-11 10:18 pm
✔ 最佳答案
since the car is travelling at constant velocity along a straight line, there is no acceleration in any directions, therefore by newton's first law of motion, the unbalanced force on the car is d) zero.
收錄日期: 2021-04-13 16:38:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070311000051KK01850