Measuring Reaction Time Using Velocity-Time Graphs

AI Thread Summary
To find reaction time from a velocity-time graph, one must identify the period of constant or increasing velocity before deceleration begins. Reaction time is defined as the interval between the driver noticing a stimulus and applying the brakes. This can be calculated by analyzing the graph, particularly the segment where velocity remains constant at 1.5 m/s. The transition from constant velocity to decreasing velocity indicates the moment the driver reacts. Understanding these concepts is crucial for accurately measuring reaction time in automotive scenarios.
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Reaction Time?

how can you find reaction time from a velocity time graph? anyone knows i need an answer asap thanks a lot =).
 
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by the way the veloctiy is 1.5 m/s and starts directly on the y axis
 
Please only post once. Thanks.

Also please show some work and effort.

One would have to elaborate, and also explain what is meant by 'reaction time'.

In automotive operation, reaction time is the time that the driver sees something that initiates the braking action and the time that the brake is applied. That time period could be discerned with a period of constant or increasing velocity, with the assumption that decreasing velocity occurs when 1) the accelerator is released and 2) the brake is applied.
 

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