9/12 Free Fall, Projectile Motion

Slides:

Advertisements

Similar presentations

Section 3-5: Projectile Motion

Advertisements

Free Fall Projectile Motion – free fall, but not vertical.

Chap 3 :Kinematics in 2D, 3D and Projectile Motion HW4: Chap.3:Pb.14,Pb.57, Pb.87 Chap 4:Pb.3, Pb.4, Pb.12, Pb.27, Pb. 37 Due Friday 26.

Projectile Motion. What Is It? Two dimensional motion resulting from a vertical acceleration due to gravity and a uniform horizontal velocity.

Turn in your homework in the front. Begin: Journal 9/03 1. Write the equation for distance using time and velocity. 2. Write the equation for velocity.

Does the odometer of a car measure distance traveled or displacement? 1.Distance traveled 2.displacement 3.neither 4.both.

PHYSICS 103: Lecture 4 Freely falling objects çThrowing a ball upward Projectile Motion çTrajectory of projectile çHitting a target Agenda for Today:

Aim: How can we approach projectile problems?

Jeopardy Vectors 1-D Holdover Concepts Calcu- lations Pictures $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Final Jeopardy.

9/13 Projectile Motion  Today: examples  HW “9/13 Building” Due Wednesday, 9/18 On web or in 213 Witmer for copying  Last years practice exam on web.

Projectile Motion Review

Projectile Motion Review.

August 31, 2001 Dr. Larry Dennis, FSU Department of Physics Physics 2053C – Fall 2001 Discussion of Chapter 2 Examples of 1-D Motion & Free Fall.

Do now A B + = ? The wrong diagrams Draw the right diagram for A + B.

Kinematics Where? When How fast? Free fall Projectile Motion.

PHYS 2010 Nathalie Hoffmann University of Utah

Motion in 1-Dimension (Objects that are moving in the x direction or y direction only!)

Jeopardy Vector Components Equations Concepts Calcu- lations Pretty Pictures $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Final Jeopardy.

Chapter 3 Review Acceleration and Free Fall 1.When an object undergoes a change in velocity, it is said to be ______________. ans: accelerating/decelerating.

9/4 Acceleration  Text sections and  HW “9/4 Airplane” due Friday 9/6 On web or in 213 Witmer for copying  For Thursday, look at text sections.

More Projectile Motion Discussion: Examples

Projectile Motion. What Is It? Two dimensional motion resulting from a vertical acceleration due to gravity and a uniform horizontal velocity.

Projectiles calculations Calculating the components of a vector using trigonometry and vertical and horizontal problems.

Projectile Motion Previously, we studied motion in one direction (linear motion) Projectiles follow a curved path (nonlinear motion) The velocity of a.

Projectile Motion objectives 1.What is a Projectile?What is a Projectile? 2.Characteristics of a Projectile's TrajectoryCharacteristics of a Projectile's.

Physics 203 – College Physics I Department of Physics – The Citadel Physics 203 College Physics I Fall 2012 S. A. Yost Chapter 3 Motion in 2 Dimensions.

Chapter 3 Motion in two or more dimensions. Two dimensional motion.

Projectiles Horizontal Projection Horizontally: Vertically: Vertical acceleration g  9.8 To investigate the motion of a projectile, its horizontal and.

ACCELERATION Motion is change of position

9/5 Graphing Motion  Text sections 2.7 and  HW “9/5 Graphing” due Monday 9/9 On web or in 213 Witmer for copying  For Friday, look at text sections.

10/3 Energy Intro  Text: Chapter 6 Energy  HW 10/3 “2nd Law vs. Energy” due Monday 10/7  Tomorrow, Potential Energy and Projectile Motion  Exam 2 Thursday,

For all problems, ignore friction and air resistance [1] How long will it take a 14. n object to free fall from a height of 50 meters? Does the fact that.

Kinematics Kinematics – the study of how things move

9/9 2-D Motion, Projectile Motion  Text sections and 1.6-8, 3.1-2, and 4.3, 4.7 Ch. 4 is about forces and gravity  HW “9/9 2-D Motion” Due Thursday,

TWO DIMENSIONAL AND VARIED MOTION Projectile Motion The Pendulum.

Chapter 3 Kinematics in Two Dimensions. 3.1 – d, v, & a A bullet is fired horizontally. A second bullet is dropped at the same time and at from the same.

Monday, Sept. 13, 2004PHYS , Fall 2004 Dr. Jaehoon Yu 1 1.Motion in two dimension Motion under constant acceleration Projectile motion Heights.

CHAPTER 6 MOTION IN 2 DIMENSIONS.

Projectile Motion Projectile motion: a combination of horizontal motion with constant horizontal velocity and vertical motion with a constant downward.

ACCELERATION Chapter 4 Acceleration A change in velocity (speed or direction)

9/6 Vector Components  Text sections and  HW “9/6 2-D Vector Components” due Wednesday 9/11 On web or in 213 Witmer for copying.

Projectile Motion.

Motion in Two Dimensions

Two-Dimensional Motion

Projectiles o A golf ball is hit with a speed of 50ms -1 at an elevation of 40 o along a level course.

2D Projectile Practice #1 If a golf ball is launched at an angle of 35 ○ with a speed of 40 m/s, 1.how long will it take to reach its highest point? 2.How.

Equations of Motion Review of the 5 Equations of Motion.

Momentum & Impulse and Projectile Motion. Momentum What is momentum? It is the quantity of motion of a moving body, measured as a product of its mass.

CHAPTER 6 SECTION 1 Projectile Motion. Objects launched either horizontally or at an angle are considered to be projectiles. All motion can be analyzed.

PHYSICS 103: Lecture 5 Agenda for Today: Review HW Solutions

Continued Projectile Motion Practice 11/11/2013. Seed Question Six rocks with different masses are thrown straight upward from the same height at the.

1. What is the acceleration due to gravity? 2. Use your kinematics equations to solve the following problem: The observation deck of tall skyscraper 370.

Kinematics. Topic Overview Kinematics is used to analyze the motion of an object. We use terms such as displacement, distance, velocity, speed, acceleration,

4.2 A Model for Accelerated Motion. Chapter Objectives  Calculate acceleration from the change in speed and the change in time.  Give an example of.

Physics 11 Advanced Mr. Jean February 14th, 2012.

Physics Support Materials Higher Mechanics and Properties of Matter

A ball is rolling along a flat, level desk. The speed of the ball is 0

Projectile Review.

Do Now Heading: Projectile Motion and Ramps

Projectile Motion.

Projectile Motion.

Projectile Motion.

Projectile Motion Horizontally

Projectile motion Projectile Motion Subject to Gravity Assumptions:

Free-Fall acceleration

Recall: A horizontal projectile

A projectile launched at an angle

What is Projectile Motion?

Projectile motion.

Presentation transcript:

9/12 Free Fall, Projectile Motion Today: examples one new equation HW “9/12 Stunt Man” Due Monday, 9/16 On web or in 213 Witmer for copying HW 9/11 “Projectile” Due Friday, 9/13 Last years practice exam on web and in 213 Exam 1 Thursday 9/19 5-7 pm Wit 116 and 114

Find the Displacement v (m/s) At what time is the object back where it started from? 10s 10 What is its velocity at this time? -8m/s If it returns to its starting point it must turn around. At what time does it do that? 10 t (s) 6s -10 What is the displacement from 2s to 13s? How many meters were put on the odometer from 2s to 13s?

Projectile Motion Example: An object is thrown with a velocity of 4m/s up and 3m/s west. The acceleration is 10m/s2 directed down. 5m/s @ 53 4m/s 3m/s How long is the object in the air?  of 10 every sec. 4 to 4 is a  of 8 t = 0.8 seconds How high does it get? vave,y = 2m/s t = 0.4 to top What is its velocity when it gets back to the ground? (Well, impact speed, not at rest.) Same speed, same angle but below axis now

Example 9 page 41 in text From rest a motorcycle accelerates at 2.6m/s/s for a distance of 120m. How long did it take? How fast is it going? Text uses vi2 = vf2 + 2ax but fails to say how we multiply vectors. This equation is off limits for us for this and other reasons but I will give you one to use in these cases. Combine v/ t = a and x/ t = vave with either vi or vf = 0…... Now you can work out t, v, and vf. Get: t = 2 x a

Projectile Motion Example: An object is thrown with a velocity of 4m/s up and 3m/s west. The acceleration is 10m/s2 directed down. tangent 0.4m Find the velocity at the point shown, 0/.4m above the ground. Last example we knew the final velocity by symmetry. Now we don’t Split the motion into two parts, before the highest point and after the highest point.

Projectile Motion Example: An object is thrown with an unknown velocity at 53 above the horizontal, reaching a height of 6.0m. The acceleration is 10m/s2 directed down. 6.0m Find the initial velocity. Split the motion into two parts, before the highest point and after the highest point.