Question

at what position does the runner stop running to rest? a 0 m b 140 m c - 50 m

Explanation:

Step1: Identify the end - point of motion

Look at the position - time graph. The runner stops running when the slope of the graph becomes zero (indicating zero velocity, i.e., at rest).

Step2: Read the position value

At the point where the runner stops (the flat - part of the graph), read the corresponding position value on the position axis. From the graph, it can be seen that the position is 0 m.

Answer:

0 m