Question

if time velocity graph is a straight line.what can we say about the motion of a body

Answer 1

if it's parallel to time axis then the body tends to b at rest but if it's the straight line between velocity and time graph then it is the constant velocity.

Answer 2

when the time velocity graph is a straight slope line ....the motion is uniform motion. but if you find it is straight horizontal line then body is in rest.You can also find that how many mins or hours the body is at rest with respect to scale and the length of horizontal line.