有一道英文的物理题求大神讲解
A 1-kg ball is thrown straight up in the air.What is the
net force acting on the ball when it reaches its maximum
height?What is the ball’s acceleration at this point?
有一道英文的物理题求大神讲解
答案:1 悬赏:0 手机版
解决时间 2021-06-09 10:55
- 提问者网友：杀生予夺
- 2021-06-08 13:30
最佳答案
- 五星知识达人网友：酒者煙囻
- 2021-06-08 14:21
When it reaches the summit,the net force is only gravity and no air resistance (since v=0).the instant acceleration is g.
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