New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Phys for Science & Engr I

by: Cale Ondricka

Phys for Science & Engr I PHYS 2101

Cale Ondricka
GPA 3.94

Awad Gerges

Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Awad Gerges
Class Notes
25 ?




Popular in Course

Popular in Physics 2

This 4 page Class Notes was uploaded by Cale Ondricka on Sunday October 25, 2015. The Class Notes belongs to PHYS 2101 at University of North Carolina - Charlotte taught by Awad Gerges in Fall. Since its upload, it has received 22 views. For similar materials see /class/229009/phys-2101-university-of-north-carolina-charlotte in Physics 2 at University of North Carolina - Charlotte.


Reviews for Phys for Science & Engr I


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 10/25/15
Physics 2101 Static Equilibrium Instructions 1 Read your text book Chapter 1 1 Sections 11 112 and 113 Eg uilibrium of a particle and a rigid bodv According to Newton s second law a particle is at equilibrium if lt gt This gives Fnetxzo Fnetho This condition is enough because the particle has a very small radius that tends to zero as shown in the gure However this condition is not enough for a rigid body ofextended dimensions For example consider a rod with two equal and opposite forces applied to it as shown in the next gure Even though the net force on the rod is zero it will rotate around an axis perpendicular to the plane ofthe paper that passes through the pivot point 0 lt r24v O F A rigid body is said to be in equilibrium when it is in translational and rotational equilibrium that is m 3 Translational equilibrium AND 3 Rotational equilibrium Example The rod shown in the figure is at equilibrium Find the magnitudes ofthe tension forces T1 T2 and T3 Tlsine Tlcose Newton s equations give F 7cos40 7 0 1 mm Fm TI sin 40 T2 700N mg 0 2 We need another equation because we have 3 unknown quantities We will take the torque with respect with an axis perpendicular to the plane of the page and passing through 0 In this way the torque due to T2 and T3 will cancel out since they pass by the pivot 0 d 0 Thus rm 0 700N05m mg lmTI 2msin 40 700N05m mglm 3 TI E 5 ON 2m sm 40 From equation 1 3 T 00540 T3 0 3 T3 T 00540 383N From equation 2 3 T2 700N 30kg 98 TI sin 40 673N s Stabili of Structures Potential energy stored on an object is given by the limited integral of the conservative force over the psth moved by the object AU UX UM W j Fxdx x03 X0 As an opposite operation if the potential distribution is known as a function of position Uxyz the components of forces can be calculated using the partial derivative of potential function as FX 6Uxyz F 6Uxyz F 6Uxyz 6x 9 y 9 2 62 Equilibrium occurs when FX 2 F F 0 For one dimensional problems The potential energy distribution is a function of x only and the force FX is defined as FX 2 d Ux dx And equilibrium occurs when FX 2 d U x 2 d2 0 There are three different cases of stability 1 Stable Eguilibrium 2 d 0a gt0 Atx x0 dx2 This means that U has a minimum at x X0gt If the object is displaced from x0 a restoring force is created to return it back to KC Ux x 2 Unstable Eguilibrium 2 d UQ lt0 Atxx0 dx2 This means that U has a maximum at x x0gt If the object is displaced from x0 a force is created to drive it away from x0 3 Neutral Eguilibrium Atxx0 dx2 d2UX 0 This means that U is a constant function If the object is displaced from x0 it will not return back nor move away but will still be at equilibrium 7 um ELQQD LUCK


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Allison Fischer University of Alabama

"I signed up to be an Elite Notetaker with 2 of my sorority sisters this semester. We just posted our notes weekly and were each making over $600 per month. I LOVE StudySoup!"

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.