Contact us
Choose a category below so we can get back to you as quickly as possible.
∵1m/s=1×10−3km13600h=3.6km/h,∴(1)20m/s=20×3.6km/h=72km/h;(2)108km/h=1083.6m/s=30m/s;그러므로 정 답 은 72,30.
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.