A car moving on a straight road covers the one third of the distance with 20 Km / h and the rest with 60 Km /h . The average speed is. A car moving on a straight road covers the one third of the distance with 20 Km / h and the rest with 60 Km /h . The average speed is. September 6, 2020 Category: Cengage NEET by C.P Singh , Chapter 2 - Motion in a Straight Line , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related