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Introductory Physics Homework Help
Max Reaction Time to Avoid Obstacle 95m Away
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[QUOTE="gneill, post: 4971781, member: 293536"] In your attempt you've assumed that the braking begins immediately when there are still 95 m to the obstacle. This won't be the case. During the time it takes for the driver to react the vehicle continues to travel at its initial speed. Only after the driver reacts does the braking begin. There are two intervals to be concerned about. The first interval is the period where the driver is deciding that she must brake and take action (the reaction time). The second is where the actual deceleration takes place. I suggest that you begin with the second interval and determine what the actual stopping distance is once the braking begins. [/QUOTE]
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Introductory Physics Homework Help
Max Reaction Time to Avoid Obstacle 95m Away
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