Note The displacement-time graph can never be a straight line, parallel to the displacement axis ( because such a line would mean that the distance covered by the body in a certain direction increases without any increase in time) (i.e., the velocity of the body is infinite) which is impossible. plz explain
Answers
whenever we draw a displacement vs time graph, that means the displacement axis is taken along the y-axis and time axis along the x-axis, which indicates the displacement occures in due course of change of time. In such cases the graph can be of any type except one that is mentioned above. If I explain the above then It says if you draw a line which is parallel to displacement axis(i.e. y-axis) then that would mean like for a particular time you get a variable displacement which is absolutely impossible to get. Because for the displacement to be changed, a time interval is required; in this case which is zero. So if I write the formula of velocity= displacement or change in position/(change in time). In this case velocity will be zero because the denominator "change in time" is zero.