Question

On the acceleration-time graph, a horizontal line indicates:

Answer 1

Step 1: Acceleration

1. Acceleration is the time rate of change in velocity.
2. The acceleration of a body is defined by the form, $a=\frac{v}{t}$, where v is the velocity of the body and t is the time.

Step 2: Diagram

Step 3: The horizontal line on a-t graph

1. In the figure, the time is increasing but the acceleration remains the same.
2. The horizontal line of the acceleration-time graph shows that the change in acceleration with respect to time is zero.
3. The value of the acceleration is constant with respect to time.
4. Such acceleration is called uniform acceleration or constant acceleration.

Therefore, On the acceleration-time graph, a horizontal line indicates the uniform acceleration of a body.