Question

draw position time graph for an object moving in uniform acceleration

Answer 1

A straight line is a curve with constant slope. Since slope is acceleration on a velocity-time graph, each of the objects represented on this graph is moving with a constant acceleration. Were the graphs curved, the acceleration would not have been constant

Answer 2

Answer:

Position time relation for uniformly accelerated motion along a straight line is

dependence of x on t^2

shows that it is a quadratic equation or quadratic function of t. So, the position-time graph for uniform accelerated motion is a parabola