Contact us
Choose a category below so we can get back to you as quickly as possible.
可以用逐差公式(連續相同的時間間隔運動的位移差是個常數,這個常數是aT2,a是加速度,T是相同的時間間隔),第9s內的位移和第5s內的位移都是1s時間運動的位移,即T=1s,第9s內位移—第8s內位移=aT2,第8s內位移—第7s...
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.