Question

draw the velocity - time graph for an object is at rest

Answer 1

When a graph is needed to be drawn to show the relation between velocity and time, the horizontal line is marked for time and the vertical line is marked for the velocity.

If an object at rest is supposed to be depicted through this graph, then a parallel line to the time bar should be drawn from the velocity bar. It shows that the velocity of this object is stationary, while the time is increasing.