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Question
A car comes to a stop six seconds after the driver applies the brakes. While the brakes are on the following velocites are recorded.
Time since brake applied 0 2 4 6
Velocity 88 45 16 0
1. Give lower and upper estimates for the distance the car travelled after the brakes were applied.
2. On a sketch of velocity against time show the lower and upper estimates of part.
Compute the average speed for each period and compute how far is traveled in 2 seconds at that speed. The answer is the sum - that's a good guess.
To compute a max, take 88 mph for the first two seconds, 45 mph for the second 2 seconds, and 16 mph for the third 2 seconds.
To compute a min, take 45 for the first 2 and s 16 for the second two.
On the graph, the maximum is the straight line above for each 2 seconds and the minimum is the straight line below.
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Answers by Expert:
Scotto
Expertise
Any kind of calculus question you want. I also have answered some questions in Physics (mass, momentum, falling bodies), Chemistry (charge, reactions, symbols, molecules), and Biology.
Experience
Experience in the area: I have tutored students in all areas of mathematics for over 25 years.
Education/Credentials: BSand MS in Mathematics from Oregon State University, where I completed sophomore course in Physics and Chemistry. I received both degrees with high honors.
Awards and Honors: I have passed Actuarial tests 100, 110, and 135.
Publications
Maybe not a publication, but I have respond to well oveer 7,500 questions on the PC.
Well over 2,000 of them have been in calculus.
Education/Credentials
I aquired well over 40 hours of upper division courses. This was well over the number that were required.
I graduated with honors in both my BS and MS degree from Oregon State University.
I was allowed to jump into a few junior level courses my sophomore year.
Awards and Honors
I have been nominated as the expert of the month several times.
All of my scores right now are at least a 9.8 average (out of 10).
Past/Present Clients
My past clients have been students at OSU, students at the college in South Seattle, referals from a company, friends and aquantenances, people from my church, and people like you from all over the world.
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