A car starts from rest and gradually increases its speed. Which of the following best describes its distance-time graph?
A curve starting from the origin with increasing slope
When a car starts from rest, its distance covered at the very beginning increases slowly, since its speed is initially small.
As the car's speed keeps increasing over time, it covers more distance in each successive equal interval of time, so the slope of the distance-time graph, which represents speed, keeps increasing.
This behaviour is represented by a curve that starts at the origin and bends upward with an increasing slope, unlike a straight line which would represent constant speed.
Hence, the correct answer is a curve starting from the origin with increasing slope.
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