Asked by stacey
Assume you are driving a car at a constant speed of 75.0 km/h. Suddenly you see a deer standing on the highway and you must put on the brakes. Your reaction time (time elapsed between the moment you see the deer and your foot hitting the brakes) is 0.116 sec. The brakes provide an acceleration of -5.4 m/s2. Find the distance (in m) the car travels (at 75.0 km/h) during your reaction time. Calculate the total distance (in m) traveled by the car before stopping.
Answers
Answered by
Steve
75 km/hr = 20.833 m/s
so, at 75km/hr, the car travels
20.833 * 0.116 m
Then, it takes 20.833/5.4 seconds to stop, and the distance traveled while braking is
20.833t - 2.7t^2
where t is the above stopping time.
so, at 75km/hr, the car travels
20.833 * 0.116 m
Then, it takes 20.833/5.4 seconds to stop, and the distance traveled while braking is
20.833t - 2.7t^2
where t is the above stopping time.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.