Contact us
Choose a category below so we can get back to you as quickly as possible.
刹車停止時,所用的時間: t刹=Vo/a=10/4=2.5s 2s時汽車還在减速 S1=Vot-at^2/2=10*2-4*4/2=20-8=12m(第一問) 刹車後3s時已經停止運動了. S刹=Vo^2/2a=100/8=12.5m(第二問)
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.