Network or Internet Trouble_shooting: First, physical check if the Network Interface Card(NIC) or LAN Card at the back of your system or Dial_up Internet MODEM is in good condition. You can check the state of your LAN Card following this steps depending on the Operating System_OS: 1. R_click on my computer icon on your  Visual … Read more

Since 60s = 1minutes and 60minutes = 1hr, it implies that 2hr = 2*60*60 = 7200secs, 1Km = 1000m therefore 80Km = 80*1000 = 80 000m, we recall that speed v = metre(m) / second(s) = 80000m/7200s = 11.11m/s (metre per second)