Question

draw the velocity time graph for object moving with velocity increases non uniformly

Answer 1

Explanation:

refer to the attachment

Answer 2

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.