From ancient times the people used different methods of transportation . After the industrial Revolution , the world underwent a major upheaval . But due to the social busyness that has arisen it too has become inadequate . An increase in the speed of transport has become a current need. Counties such as Chaina & Japan have 600 km/h of high speed transportation system ,but due to their busyness and size , they are not adequate . π1829 was a year of great change in the field of transportation . They built a railway line from Manchester to Liverpool in England and conducted a competition for the selection of the fastest train at a speed of 38 km/h . A similar thing happent recently. In 2017, it was done by billionaire " Elon Musk " . When we give acceleration to an object ,it gains some momentum . But when that acceleration is stopped ,it slows due to the drag force and the friction force of ground .But as far as we know both of these force are not present in space .So
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