Question

if the speed of a body is non uniform , then the graph between distance traveled and time is :-
a) straight line
b) curved line
c) hyperbola
d) none of these​

Answer 1

Slope of velocity time graph gives acceleration of a body in that particular direction.

When graph is straight line then its acceleration is constant and when the straight line is parallel to x-axis then its acceleration is zero.
Graph parallel to y-axis is not possible.

So for variable acceleration graph will be curved in shape.