The position-time graph for an object is shown below. Which statement best describes the object's motion? [Graph showing a curve that starts at the origin and curves upward with decreasing slope] A) The object is moving with constant velocity B) The object is moving with constant acceleration C) The object is moving with decreasing velocity D) The object is moving with increasing velocity

Core Concept

On a position-time graph, the slope represents velocity. The graph shows a curve that is increasing in slope, which means the velocity is increasing over time. This indicates positive acceleration. Option A is incorrect because a constant velocity would produce a straight line with constant slope. Option B is incorrect because constant acceleration would produce a parabolic position-time graph, not one with decreasing slope. Option C is incorrect because decreasing velocity would produce a curve with decreasing slope, but the slope here is increasing (becoming steeper).