🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
HomeClass Notes1,200,000CA670,000

PHYS 157 Lecture 21: PHYS 157 Lecture 21

43 views1 pages
Verified Note
goldgoat17
15 Nov 2018
School
UBC
Department
Physics
Course
PHYS 157
Professor
fei Zhou

For unlimited access to Class Notes, a Class+ subscription is required.

PHYS 157 verified notes
21/26View all
20

PHYS 157 Lecture 20: PHYS 157 Lecture 20

21

PHYS 157 Lecture 21: PHYS 157 Lecture 21

23

PHYS 157 Lecture Notes - Lecture 23: Damping Ratio

Document Summary

The position vs time graph of a mass attached to a spring is shown in the figure. At point p the mass has: positive velocity and positive acceleration, positive velocity and negative acceleration, positive velocity and zero acceleration, negative velocity and positive acceleration, negative velocity and negative acceleration. Simple harmonic motion occurs under the influence of: a constant restoring force, a restoring force that is linear with displacement, a restoring force that is sinusoidal with displacement, a force proportional to velocity, small forces.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related Documents

PHYS 157 Lecture 19: PHYS 157 Lecture 19
goldgoat17
UBC
PHYS 157 Lecture 20: PHYS 157 Lecture 20
goldgoat17
PHYS 157 Lecture Notes - Lecture 14: Isochoric Process, Ideal Gas
goldgoat17

Related Questions

Thisis a graph of a particle's position along an x axis versustime.

(a) At time t = 0, what is the sign of the particle'sposition? (Minus or plus)

(b) Is the particle's velocity positive, negative, or zero att = 1 s?

(c) Is the particle's velocity positive, negative, or zero att = 2 s?

(d) Is the particle's velocity positive, negative, or zero att = 3 s?

(e) How many times does the particle go through the pointx = 0?

Consider the velocity vs. time graph of a person in an elevator shown in Figure 2.58. Suppose the elevator is initially at rest. It then accelerates for 3 seconds, maintains that velocity for 15 seconds, then decelerates for 5 seconds until it stops. The acceleration for the entire trip is not constant so we cannot use the equations of motion from Motion Equations for Constant Acceleration in One Dimension for the complete trip. (We could, however, use them in the three individual sections where acceleration is a constant.) Sketch graphs of (a) position vs. time and (b) acceleration vs. time for this trip.

Consider the velocity vs. time graph of a person in an elevator shown in the figure below. Suppose the elevator is initially at rest. It then accelerates for 3 seconds, maintains that velocity for 15 seconds, then decelerates for 5 seconds until it stops. The acceleration for the entire trip is not constant so we cannot use the equations of motion from Motion Equations for Constant Acceleration in One Dimension for the complete trip. (We could, however, use them in the three individual sections where acceleration is constant.) Sketch graphs of (a) position vs. time and (b) acceleration vs. time for this trip.