There are forces at work whenever you throw a ball, run up the stairs, or push your big brotheroff the couch. Want to learn more about the forces around you? Read and find out!
把球扔出去、爬樓梯或將哥哥推離沙發時,都會有股作用力。想進一步了解你周圍的力嗎?一起閱讀和發現吧!
There are forces at work whenever you throw a ball, run up the stairs, or push your big brotheroff the couch. Want to learn more about the forces around you? Read and find out!
把球扔出去、爬樓梯或將哥哥推離沙發時,都會有股作用力。想進一步了解你周圍的力嗎?一起閱讀和發現吧!