Particle physics pdf download

The particle is moving to the right, so its velocity is positive. Thus, the acceleration is also positive. The particle position is below zero on the y-axis, so its position is negative. The particle is moving up, so its velocity is positive.

The particle position is above zero on the y-axis, so its position is positive. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced, in any form or by any means, without permission in writing from the publisher. Model: Model the car as a particle. Imagine a car moving in the positive direction i. As it skids, it covers less distance between each movie frame or between each snapshot.

Solve: Assess: As we go from left to right, the distance between successive images of the car decreases. Because the time interval between each successive image is the same, the car must be slowing down. Model: Model the rocket as a particle. We have no information about the acceleration of the rocket, so we will assume that it accelerates upward with a constant acceleration.

Solve: Assess: Notice that the length of the velocity vectors increases each step by the same amount. Model: Model the jet ski as a particle. Assume the speeding up time is less than 10 s, so the motion diagram will show the jet ski at rest for a few seconds at the beginning.

Concepts of Motion Solve: Assess: Notice that the acceleration vector points in the same direction as the velocity vector because the jet ski is speeding up.

Section 1. Solve: a The basic idea of the particle model is that we will treat an object as if all its mass is concentrated into a single point. The size and shape of the object will not be considered. The particle model is important in that it allows us to simplify a problem. Complete reality— which would have to include the motion of every single atom in the object—is too complicated to analyze. By treating an object as a particle, we can focus on the most important aspects of its motion while neglecting minor and unobservable details.

Solve: Assess: The average velocity keeps increasing with time since the ball is speeding up as it falls. Solve: The player starts from rest and moves faster and faster to the left. Solve: The player starts with an initial velocity but as he slides he moves slower and slower until coming to rest. Solve: a Let v0 be the velocity vector between points 0 and 1 and v1 be the velocity vector between points 1 and 2. Speed v1 is greater than speed v0 because more distance is covered in the same interval of time.

Assess: The acceleration vector points in the same direction as the velocity vectors, which makes sense because the speed is increasing. Solve: To find the accelerations, use the method of Tactics Box 1.

Solve: a b 1. Concepts of Motion 1. Model: Model the skater as a particle. Visualize: The dots are getting farther apart at the beginning, but after the skater reaches constant speed the dots are equally spaced.

Solve: [ 1. Visualize: The dots are equally spaced until brakes are applied to the car. Equidistant dots on a single line indicate constant average velocity. Upon braking, the dots get closer as the average velocity decreases, and the distance between dots changes by a constant amount because the acceleration is constant. Solve: 1. Model: Model the goose as a particle. Assume a constant speed before the goose hits the water. Assume a constant acceleration while sliding and slowing on the water.

Visualize: The dots are equally spaced until the goose hits the water. Upon hitting the water, the dots get closer as the average velocity decreases, and the distance between dots changes by a constant amount because the acceleration is constant. Model: Represent the wad of paper as a particle, ignore air resistance, and assume that the upward acceleration of the wad is constant. Visualize: The spacing of the dots increases and then decreases because the acceleration is first upward speeding up the wad and later downward slowing up the wad.

Model: Represent the tile as a particle. This part of the motion is represented by dots with increasing separation, indicating increasing average velocity. After the tile enters the water, it settles to the bottom at roughly constant speed, so this part of the motion is represented by equally spaced dots.

Model: Represent the tennis ball as a particle. Visualize: The ball falls freely for three stories. Upon impact, it quickly decelerates to zero velocity while comp- ressing, then accelerates rapidly while re-expanding. As vectors, both the deceleration and acceleration are an upward vector. The downward and upward motions of the ball are shown separately in the figure. The increasing length between the dots during downward motion indicates an increasing average velocity or downward acceleration.

On the other hand, the decreasing length between the dots during upward motion indicates acceleration in a direction opposite to the motion, so the average velocity decreases. Assess: For free-fall motion, acceleration due to gravity is always vertically downward. Notice that the acceleration due to the ground is quite large although not to scale—that would take too much space because in a time interval much shorter than the time interval between the points, the velocity of the ball is essentially completely reversed.

Concepts of Motion Section 1. Solve: A forgetful physics professor is walking from one class to the next. Walking at a constant speed, he covers a distance of m in s. He then stops and chats with a student for s.

Suddenly, he realizes he is going to be late for his next class, so the hurries on and covers the remaining m in s to get to class on time. Solve: Eustace the truck driver had a load in a city miles east of El Dorado.

He drove west at 60 mph for two hours to El Dorado where he spent an hour unloading the truck and loading up different cargo. He then drove back east at 40 mph for two hours to the final destination 80 miles east of El Dorado.

Visualize: The bicycle move forward with an acceleration of 1. Thus, the velocity will increase by 1. Visualize: The rocket moves upward with a constant acceleration a. Solve: a One significant figure. In scientific notation it is straightforward: ignore all the zeros on the left. The zero on the right is significant. Solve: a 8. Solve: a The files are available in PDF format. When it comes to the study of physics, there are no two methods of teaching better than textbooks and lab manuals.

College Physics 11th Edition is written in a way that not only provides explanations for different types of physics problems but also it helps students get a grip on concepts by piling up examples after examples coupled with easy-to-understand formulas. College Physics, 11th edition, by Raymond A. Serway and Chris Vuille, helps students master physical concepts, improve their problem-solving skills, and enrich their understanding of the world around them.

The WebAssign component for this title engages students with immediate feedback, tutorials, videos, and an interactive eBook. This College Physics by Raymond A. Serway is the best book for collages physics students. The health professions, or other disciplines, including environmental, earth, and social sciences, and technical fields such as architecture. In this College Physics of Raymond A. In addition, the text now has a fully integrated learning path in MindTap.

Philip W. He joined the faculty of LSU in and has since become an internationally recognized low-temperature experimentalist and has published over 90 papers in peer-reviewed scientific journals. He is a Fellow of the American Physical Society and has given many invited presentations on his work at international workshops and conferences on superconductivity and other topics in low temperature condensed matter physics.

Dr Adams has had a career-long interest in physics education. He has taught introductory physics for engineers and for non-engineers many times in his year tenure at LSU and has been the recipient of numerous teaching awards. Hugh D.