Key Points of the Lesson

Slides:

Advertisements

Similar presentations

Usain Bolt is the world’s fastest man!!!

Advertisements

Uniform Circular Motion & Relative Velocity. Seatwork #2 A man trapped in a valley desperately fires a signal flare into the air. The man is standing.

Relative Velocity.

2D Relative Motion Problem #1

Do Now: p.528, #27 Find the measures of the angles of the triangle whose vertices are A = (–1, 0), B = (2, 1), and C = (1, –2). Component forms: Magnitudes:

Constant Acceleration and Relative Velocity Constant Acceleration and Relative Velocity.

Relative Motion. Point of View  A plane flies at a speed of 200. km/h relative to still air. There is an 80. km/h wind from the southwest (heading 45°

Relative Motion. Point of View  A plane flies at a speed of 200. km/h relative to still air. There is an 80. km/h wind from the southwest (heading 45°

All motion is relative; that is, motion must be measured relative to a frame of reference. For example, if you’re sitting in a rowboat that is floating.

Motion Notes Physical Science.

Kinematics in 2D… Projectile Motion. Think About It… What happens when you are driving at a constant speed and throw a ball straight up in the air? How.

Usain Bolt is the world’s fastest man!!!. Physics of Motion We will look at: –Distance –Displacement –Speed First you need to realize that motion is relative…

PHYS 20 LESSONS Unit 2: 2-D Kinematics Projectiles Lesson 3: Relative Velocity.

Definition of Speed Speed is the distance traveled per unit of time (a scalar quantity).Speed is the distance traveled per unit of time (a scalar quantity).

-Relative Motion -Vector Addition and Subtraction -Motion in Two Dimensions Intro Physics Mrs. Coyle.

Teacher notes: EQ: How does motion (even constants) Change depending on how you look at it? We will discuss what a frame of reference is, and how it effects.

Newton’s Third of Motion Newton’s Third Law Action-Reaction Whenever one body exerts a force on a second body… …the second body exerts an equal and opposite.

Vectors Physics Objectives Graphical Method Vector Addition Vector Addition Relative Velocity.

Riddle How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no.

Relative Velocity. objects move within a medium which is moving with respect to an observer an airplane encounters wind a motor boat moves in a river.

3.3 & 3.4 Projectile Motion. Biblical Reference Then the archers shot arrows at your servants from the wall, and some of the king’s men died. 2 Samuel.

Velocity Vectors & Projectile Motion Wind 20 km/h East Wind 20 km/h West Wind 20 km/h South Plane 100 km/h East VELOCITY VECTORS Plane 120 km/h East.

Physics 101: Lecture 7, Pg 1 Constant Acceleration and Relative Velocity Constant Acceleration and Relative Velocity Physics 101: Lecture 07.

Checking Your References Relative Motion. How would Homer know that he is hurtling through interstellar space if his speed were constant? Without.

Frame of reference Physical Definition- a framework that is used for the observation and mathematical description of physical phenomena 2 Simple definitions-

Chapter Relative Motion. Objectives Describe situations in terms of frame of reference. Solve problems involving relative velocity.

Chapter 3 Motion (Ewen et al. 2005) Objectives: Distinguish between speed and velocity Use vectors to illustrate and solve velocity problems.

Kinematics in Two Dimensions

Frames of Reference and Relative Velocities. Frames of Reference Frame of Reference – The stationary background to which an object is compared to tell.

1.5 Frames of Reference and Relative Velocity

Relative Motion.

Part I Relative Velocity Vector Addition and Subtraction (Graphical)

Relative Motion! (pg. 82 – 83) Amy, Bill, and Carlos are watching a runner… According to Amy, the runner’s velocity is vx = 5 m/s According to Bill, the.

Air Navigation Problems

What do you think? One person says a car is traveling at 10 km/h while another states it is traveling at 90 km/h. Both of them are correct. How can this.

8.2 Average Velocity Science 10.

Motion Motion - the displacement of an object in relation to objects that are considered to be stationary.

Vectors and Scalars.

Relative Motion © 2015 Pearson Education, Inc..

Kinematics Physics 101: Lecture 03

Name: __________________________ Class: _____ Motion 11

Relative Motion.

Chapter 3-4: Relative Motion

Relative Motion.

CHAPTER 3: TWO DIMENSIONAL MOTION & VECTORS

Chapter 2 : Kinematics in Two Directions

Introduction to Vectors

A hot-air balloon rises vertically at velocity vBE, as measured from the earth. The balloonist hurls a rock horizontally outward at velocity vRB as measured.

Motion Chapter 11.

5.2 Velocity Vectors The resultant of two perpendicular vectors is the diagonal of a rectangle constructed with the two vectors as sides.

Relative velocity Velocity always defined relative to reference frame. All velocities are relative Relative velocities are calculated by vector addition/subtraction.

Velocity is a vector quantity and must include direction.

Relative Motion.

Section 3-8: Relative Velocity

Relative Velocity and Navigation

Constant Acceleration and Relative Velocity

Relative Motion AP Physics C Mrs. Coyle.

Speed is a scalar quantity because it has no direction.

Motion is Relative Motion does not exist isolated by itself. Motion must be defined in terms of some frame of reference, which is to say that motion is.

Preview Section 1 Introduction to Vectors Section 2 Vector Operations

Velocity is a vector quantity and must include direction.

Relative Motion.

Vectors Day 7 Lyzinski Physics.

Relative Motion.

Velocity Vectors Chapter

Relative Motion All Motion is Relative.

Relative Velocity.

-Relative Motion -Vector Addition and Subtraction

Presentation transcript:

Key Points of the Lesson Relative Motion Key Points of the Lesson Understand that objects move differently in different frames of reference Using vectors and vector diagrams to represent and calculate relative motion

Frames of Reference All motion is relative! All motion is measured with respect to (wrt) a particular frame of reference. Frame of Reference: system for specifying the precise location of objects in space and time; background against which motion is measured An object’s velocity measured in one reference frame can be completely different when it is measured from another reference frame.

Relative Velocities Need to distinguish velocities as measured in different frames of reference. Use subscripts using two letters: Read as: velocity of (first letter) wrt (second letter) vac = vab + vbc Important: vab = -vba Since velocity is a vector quantity, rules of vector addition and vector resolution apply

Relative Velocity – Example 1 You are walking backward in a bus at a rate of 1 m/s. Relative to the earth, the bus is moving forward at 19 m/s. What is your velocity relative to the bus (and other passengers on the bus)? What is your velocity relative to an observer on the side of the road?

Relative Velocity – Example 2 You are driving North at 55 mph. A driver in the Southbound lane approaches you at 45 mph. What is your velocity relative to the other driver? What is your velocity relative to an observer on the side of the road?

Relative Velocity – Example 3 An airplane is flying due east relative to still air at a speed of 320 km/h. There is a 65 km/h wind blowing toward the north, as measured by an observer on the ground. What is the velocity of the plane measured by the ground observer?