Do Now: Quiz HW: Problem Set

Slides:



Advertisements
Similar presentations
Today’s Objective: Students will be able to:
Advertisements

Aim: How can we describe resultant force (net force)?
Problem y x Collars A and B are connected P
ME 221Lecture 231 ME 221 Statics Lecture #23 Sections 5.6 & 5.7.
Physics 101: Lecture 9, Pg 1 Physics 101: Application of Newton's Laws l Review of the different types of forces discussed in Chapter 4: Gravitational,
Newton’s 1 st Law – Objectives: 1.Explain the relationship between the motion of an object and the net external force acting on it. 2.Determine the net.
Examples from Chapter 4.
Free-body diagrams Pg. 15 in NB
Mathematical Method for Determining Resultants of Vectors that form right triangles! If two component vectors are at right angles to each other, their.
Structural Analysis I Truss Bridge Definitions Static Determinancy and Stability Structural Analysis Trigonometry Concepts Vectors Equilibrium Reactions.
Statics: Equilibrant The condition of equilibrium How to solve Example Whiteboards (Demo: Force scales, masses)
Laws of Motion and Force Diagrams Many of the following slides are from the online physics site:
Forces & Equilibrium. Equilibrant Forces Equilibrant – A single, additional force that is exerted on an object to produce equilibrium, which is the same.
Adding Vectors at Right Angles Instructor: Ms. Chase.
Adding Vectors on the Same Line When two vectors are in the same direction it is easy to add them. Place them head to tail and simply measure the total.
Applications of Coulomb’s Law Physics 12. Joke of the day/clip of the day:  Minute physics again! 
A conical pendulum is formed by a mass of 100 g (0.1 kg) moving in a circle as shown. The string makes an angle of 30 o. 1.Draw the free body force diagram.
Applications of Force ► Anyone who has never made a mistake has never tried anything new. -Albert Einstein Albert EinsteinAlbert Einstein ► Overview 
2.1.2A Free Body Diagrams and Net Force
Free Body Diagrams Outline Free Body Diagram Quiz.
Do Now: This is a diagnostic assessment. If you don’t know the answers, write down the question for full credit.  Write the direction and magnitude of.
Quiz 13.5 Solve for the missing angle and sides of Triangle ABC where B = 25º, b = 15, C = 107º Triangle ABC where B = 25º, b = 15, C = 107º 1. A = ? 2.
Free Body Diagrams. Weight Free Body Diagrams Net Force Present.
PHY221 Ch5: Forces and FB Diagram 1.Recall main points: Forces and FB diagrams 2.Discussion and examples.
EQUILIBRIUM The sum of the forces is zero. The acceleration is zero. ΣF = 0 a=0.
 A system can consist of one or more objects that affect each other.  Often, these objects are connected or in contact.
Forces. Log into my website, click the Introduction to Forces Notes On a note card, define the following terms: Force Newton Unbalanced force Contact.
Chapter Five: Forces  5.1 Forces  5.2 Friction  5.3 Forces and Equilibrium.
Free-body diagrams Pg. 17 in NB. Identify normal forces. Draw a free-body diagram with forces in vertical and/or horizontal directions. Calculate the.
Is it always equal to the weight (mg) of the object? Why or why not?
Tension Problems.
© 2015 Pearson Education, Inc.
Aim: How can we solve angular Projectile problems?
Recalibrating, forces, resultant calculations
Do Now: 1. Remember Mailman Rich? He walked 22 km North, then 47 km South of East at 60o. EXPLAIN how we calculated the resultant mathematically? 60o.
Class Notes 28 September Turn in HW / Pick up HW Today:
Aim: How does Newton’s second law apply with pulleys?
Problem mm It has been experimentally determined that the bending moment at point K of the frame shown is 300 N-m. Determine (a) the tension.
Aim: How can we apply Newton’s 1st and 2nd Law?
Aim: How do we solve vector problems mathematically?
Aim: How can we apply Newton’s Second Law?
Aim: How do we define equilibrium in a system?
Applications of Newton’s Laws Tension and Pulleys
Force Vectors and Equilibrium
Vectors.
An Introduction to Forces
Sign in Handouts Phones up
Chapter 5 Section 3 Forces and Equilibrium
7.7 Solve Right Triangles Obj: Students will be able to use trig ratios and their inverses to solve right triangles.
Warm Up Label each leg opposite, adjacent or hypotenuse. Write the formula and solve for each missing side to the nearest tenth.
Find The Net Force on These
Free Body Diagrams at an Angle
Vector Problems in 3- Dimensions
Newton’s Third Law If object 1 and object 2 interact, the force exerted by object 1 on object 2 is equal in magnitude but opposite in direction to the.
Warm up: Solve for x 1.) 2.) 4.) 3.) 124◦ 70◦ x 18◦ x 260◦ x 20◦ 110◦
Free Body Diagrams and Acceleration
C. Vectors and Bearings Students are expected to:
Find The Net Force on These
Chapter Five: Forces 5.1 Forces 5.2 Friction
What is the net force on an object at rest?
Aim: How do we solve static equilibrium problems?
Forces and Fields Lesson 5
Applying Forces AP Physics 1.
Forces in Equilibrium Name: _______________
Forces 11/6/14.
Motion and Force. Motion and Force Chapter Thirteen: Forces 13.2 Forces and Equilibrium.
Main Idea: Forces Forces Friction Forces and Equilibrium.
In this section you will:
Applying Forces AP Physics C.
Problem B A Two cables are tied together at C and
Presentation transcript:

Do Now: Quiz HW: Problem Set Aim: How is an object with forces exerted at different angles in equilibrium? Do Now: Quiz HW: Problem Set

Demo 1 Draw a Free Body Diagram and solve for all forces! 200 g 100 g Students draw FB, label forces and solve for forces. T1 = T3 and W = T2 Should be T1 = 1N and T2 = 2N, Check when done and say Physics works!

Demo 2 Draw a Free Body Diagram and solve for all forces! 200 g 100 g Draw FB, label forces Write up = down and left = right. T2y = W = 2N and T2x = T1= 1N Solve for tension (T2) on top string with Pythagorean theorem. Tan = T2y/T2x for angle. (Vector addition) ***Try to do calculation yourself to avoid wasted time.

Summary 1. How do we solve for forces at an angle in any case? 2. How do we solve for that force’s direction?