Ch2-H3-solutions

# Ch2-H3-solutions - chauhan(mmc2762 Ch2-H3 turner(56910 This...

This preview shows pages 1–2. Sign up to view the full content.

chauhan (mmc2762) – Ch2-H3 – turner – (56910) 1 This print-out should have 13 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001(part1of6)0.0points For each part of this question, match the given graph with the letter (A-I) corresponding to the appropriate description of motion of a fan cart moving along a track. Only one statement will describe each graph and not all descriptions will be used. Assume the usual coordinate system (+ x to the right, + y up, + z out of the page). A. A cart moves to the left, gradually slow- ing down. B. A cart moves to the right, gradually speeding up. C. A cart moves to the left at constant speed. D. A cart moves to the left, gradually slow- ing down, stops, and moves to the right, speeding up. E. A cart remains stationary and does not move. F. A cart moves to the right, gradually slow- ing down. G. A cart moves to the right, gradually slow- ing down, stops, and moves to the left, speeding up. H. A cart moves to the left, gradually speed- ing up. I. A cart moves to the right at constant speed. t v x Correct answer: I. Explanation: Here, the fact that the line is flat tells us that the magnitude and direction of v x are fixed. In this case, v x > 0, so the cart is moving to the right at constant speed. 002(part2of6)0.0points t v x Correct answer: H. Explanation: Here, the cart starts off with negative value of v x , so the cart is moving to the left. It ends with an even larger negative value of v x , with the line smoothly connecting these two points. This tells us that the cart is speeding up toward the left.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern