solution_pdf_courseuserassignment=7574074

solution_pdf_courseuserassignment=7574074 -...

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

View Full Document Right Arrow Icon

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

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

Unformatted text preview: mitchell (jm56986) – HW #2 – montgomery – (24131) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m. If the book ends up at its initial position, what is the magnitude of its displacement? 1. 4 m 2. 7 m 3. 6 m 4. 5 m 5. 3 m 6. 2 m 7. 0 m correct 8. 8 m 9. 1 m 10. None of these Explanation: Since its final position is the same as its initial position, the displacement is 0. 002 (part 2 of 2) 10.0 points What is the distance traveled? 1. 7 m 2. 5 m 3. 0 m 4. 3 m 5. 2 m 6. 1 m 7. 6 m 8. 8 m correct 9. None of these 10. 4 m Explanation: The distance traveled is the perimeter of the table: d = 2 ℓ + 2 w = 2 (1 m) + 2 (3 m) = 8 m . 003 10.0 points At 1:00 p.m. a car, traveling at a constant velocity of 81 km / h toward the west, is 19 km to the west of our school. How far from the school will it be at 3:30 p.m.? Correct answer: 221 . 5 km. Explanation: In the 2.5 hours of travel time, the car will have traveled Δ d = v t = (81 km / h) (2 . 5 h) = 202 . 5 km , so the new position is d = 19 km + 202 . 5 km = 221 . 5 km west of the school. 004 (part 1 of 2) 10.0 points John runs at 3 . 9 m / s for 5 . 27 s along the x axis. How far does John run?...
View Full Document

{[ snackBarMessage ]}

Page1 / 4

solution_pdf_courseuserassignment=7574074 -...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online