An ice skater glides slowly to a stop

Slides:

Advertisements

Similar presentations

Skate Park Practice Problems

Advertisements

Time (s)012 Mass of car & bucket (kg) Mass of falling bucket (kg) Force of falling bucket (F = m x a (earth) ) (N) Acceleration of the system ( F = m.

Kinematics- Acceleration Chapter 5 (pg ) A Mathematical Model of Motion.

Particle Straight Line (Integration): Ex Prob 2 A particle experiences a rapid deceleration: a = -2v 3 m/s 2. Initially, at t = 0, v(0) = 8 m/s and s(0)

Vector vs. Scalar Quantities A vector quantity is a quantity that has both magnitude and direction. Velocity, acceleration, and force are examples of.

Speed, Velocity, and Acceleration Review. Frame of Reference When we describe something that is moving, we are comparing it to something that is assumed.

Shrinking Moon Explanation on next slide. Velocity Is a description of an object’s speed and direction. formula is the same as for speed Velocity=

Acceleration. Review Distance (d) – the total ground covered by a moving object. Displacement (  x) – the difference between an object’s starting position.

Graphical Analysis of Motion AP Physics B. Slope – A basic graph model A basic model for understanding graphs in physics is SLOPE. Using the model - Look.

Corvette speeds up quickly 3 NJIT Physics 1: General Motors mistakenly calls a car “fast” even it it’s only going 60 mi/hr. The ads mean that it speeds.

Acceleration Definition 2 ways to do it Positive acceleration Negative acceleration (deceleration) A change in velocity Change speed and/or Change direction.

STARTER During a road trip, in 6 hours you travel 300 miles. What is your average velocity? Average Velocity = distance travelled/time taken = 300 miles/6.

Corvette speeds up to 10mph quickly General Motors mistakenly calls this car “fast.” Fast has to do with the speed limit. Even if it’s only going 10 mi/hr,

Drone speeds up carefully NJIT Physics : A drone can speed up under the careful control of a remote pilot 2015 Chevy Corvette Z BMW M1 Concept.

A Biker slows down How far does she go when she puts on the brakes?

More More graphs of motion & Kinematic equations SEPTEMBER 11-14, 2015.

 Acceleration: When an object changes velocity, it undergoes acceleration.  Acceleration (a) = (v f - v i )/t Change in speed = v f - v i v i = (initial.

Substituting into expressions.

1. What distance will a train stop in if its initial velocity is 23 m/s and its acceleration is m/s/s? 1058 m xvivfatxvivfat.

Kinematics 1-D Motion Scalar A SCALAR is ANY quantity in physics that has MAGNITUDE, but NOT a direction associated with it. Magnitude – A numerical.

Ice Skating ! By: Chaniyah O., 905. Where Did We Go ?  On February 17, 2011 The Mathematics Of Sports Cluster Went Ice Skating At Bryant Park On 42 nd.

3:00. 2:59 2:58 2:57 2:56 2:55 2:54 2:53 2:52.

An American eagle takes wing A nearly constant, moderate acceleration produces speed efficiently 2015 Chevy Corvette Z BMW M1 Concept Car An eagle.

A molecule slows down during fibril growths Motion of a molecule toward a growing fibril.

Acceleration a change in velocity ( speed or direction or both ) over time –speeding up or slowing down –changing direction moving in a circle is always.

F = ma F = Force m = Mass a = Acceleration. The Manned Manoeuvring Unit.

 Distance vs. Displacement  Speed vs. Velocity.

Acceleration Acceleration is the rate of change of velocity.

OBJ: Solve Linear systems graphically & algebraically Do Now: Solve GRAPHICALLY 1) y = 2x – 4 y = x - 1 Do Now: Solve ALGEBRAICALLY *Substitution OR Linear.

1.a. What are 3 ways that an object can accelerate?

Let’s Review Some Physics!. A dog accelerated from rest to a speed of 8 m/s. What was the average speed of this dog? If the dog traveled 4 m while speeding.

Do you think the Skater will make it over the first hump

Chapter 12 Review a d 13 kg b c A box is accelerated to the right across the smooth surface of a table with an applied force of 40 Newtons. The table surface.

Washington Capitals HOW MANY PLAYERS? Counting and Adding with Hockey

More graphs of motion & Kinematic equations

Do Now: What does it mean for something to be a vector and scalar?

Graphical Analysis of Motion

Describing Motion Some More Equations….

Chapter 5 A Mathematical Model of Motion

Top Fire Protection Services Ottawa available on Dubinskyconstruction

اختر أي شخصية واجعلها تطير!

Functions Review.

Motion Unit Miss McDonald Science 8

3.2 Part B Notes Motion graphs.

Bell Work: More Acceleration

Unit 2: Acceleration (Lesson 1)

Friction and Gravity Review

Evaluating Algebraic Expressions

Warm-up Draw graph, write brief question and answer

Graphical Analysis of Motion

Мектепті дамытуды жоспарлау

Graphical Analysis of Motion

Acceleration Unit 1: Motion.

For uniform motion (constant velocity), the equation

Section 3 – pg 350 Acceleration

Final Study Guide Part 1.

ALGEBRA II HONORS/GIFTED

t Vf - vi Acceleration Problem Set Name: ______________________

you get to solve puzzles!

Unit 2 (Reading) F 2015 Unit 2 (Reading) H 2015

Solving One-Step Equations

Graphical Analysis of Motion

Motion Graphs AP Physics C.

1. a. What velocity must a car go around a 250

Warm-Up 9/30/13 Your warm-up is on your table (Strobe Diagrams)

a = v2 – v1 t a = 8 m/s s a = 8 m/s2 a = 36 m/s – 4 m/s 4 s #6 d

Presentation transcript:

An ice skater glides slowly to a stop Let’s talk about the time in a graceful move.

The question Sasha Cohen glides on her ice skates from an initial speed of 2m/s to a stop. Her acceleration is -0.25 m/(s*s). How long does her glide take? a. 1; b. 2; c. 4; d. 6; e. 8 (seconds)

Guide: Sketch Units List variables: Phys Eqn. : Algebra: Arithmetic: Answer letter: e. Comment: a piece of cake. v=x/t a=(v-vo)/t x=vo*t+at2/2 v2=vo2+2ax

Prof’s step by step answer Sketch (units ok): Units OK List variables: vo, v, a, t=? Phys Eqn. : a=(v-vo)/t Algebra: a=-vo/t; t=-vo/a Arithmetic: t=-2/(-1/4)=8s Answer letter: e. Comment: a piece of cake. Vo=2m/s V=0 t=0 t=? v=x/t a=(v-vo)/t x=vo*t+at2/2 v2=vo2+2ax