AVERAGE VELOCITY: V = d/t V = (Vi + Vf)/2

Slides:

Advertisements

Similar presentations

Aim: How can we calculate average velocity when distance is unknown? Do Now: What is the average velocity between A and B? Velocity (m/s) Time (s)

Advertisements

Acceleration. Recall:  Acceleration is the rate at which velocity increases or decreases  If an object is accelerating is not experiencing uniform motion.

Describing Motion with Equations Notes

This is the ball rolling on the table for 3 sec and rolls 10 cm/sec and then rolling back -5cm/sec….. Remember I stated that this can be done by common.

WE CAN ONLY USE THESE IN ONE DIRECTION AT A TIME (only X or only Y not both at same time)

Acceleration. MEANING FORMULA = A = Acceleration V f = V i = t=

By Rachael Jefferson. Acceleration is the rate of change in velocity with respect to time. A avg = ∆v/∆t = (v f -v i )/(t f -t i ) Notice how this form.

Velocity and Acceleration. Velocity and Speed Velocity and speed are both how fast you are going, but velocity implies a direction (N, S, E, W) as well.

SPEED and VELOCITY Speed is how far an object travels in a given time period. Speed is how far an object travels in a given time period. S= d/tS= d/t Speed.

Objective: MCAS review- Speed and Acceleration Homework: Finish questions.

Speed, Velocity and Acceleration What is speed? How is velocity different than speed? What is acceleration? Today’s Goal: Be able to use the proper equations.

 Vi = 0 m/s  T = 10 s  Find d =  Find v f =. Guided Practice Problems.

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

Velocity and Acceleration. Velocity Describes both speed and direction of an object. Describes both speed and direction of an object. How can an object.

Linear Kinematics - displacement, velocity and acceleration Contents:

Aim: How do we use the kinematics formulas? Do Now: What is the difference between average velocity and instantaneous velocity? Quiz Tomorrow.

By: Christie, Danielle, and Nicole. Solves for Final Velocity Variables needed Initial Velocity Acceleration Change in time Displacement is not needed.

Linear Kinematics - displacement, velocity and acceleration Contents:

Average speed formula v avg = ½ (vf+vi).

Acceleration calculations

How to Solve Physics Problems

Chapter 3 Day 3 Acceleration.

Linear Kinematics - displacement, velocity and acceleration Contents:

Unit II Physical Science

Describing Motion Some More Equations….

Describing and Measuring Motion, Velocity & Acceleration

STATE EXPECTATION: P2.1 AN OBJECT’S POSITION CAN BE

Acceleration Physical Science.

Impulse Momentum Problems Answers

Introduction to Motion

The basic four equations for physics

Acceleration a.

Do Now: Kinematic Chart

Today we will: Use different acceleration equations to solve for displacement, final velocity, initial velocity, and time. Begin review for test.

Graphing exercise Phet Simulation.

1-1-4 Kinematics Equations

A Way to Solve Equations

Motion Physical Science.

STATE EXPECTATION: P2.1 AN OBJECT’S POSITION CAN BE

Ch 02 Graph Worksheet Answers

Solving Word Problems Using Kinematics Equations

Acceleration To calculate acceleration, we use the following formula:

Graphical Analysis of motion in _________________ one direction

Motion and Force A. Motion 1. Motion is a change in position

Chapter 2 Acceleration.

Chapter 2 Motion in One Dimension

Velocity & Acceleration

Motion All motion is relative Name some types of motion

Calculations and Worked Examples

Displacement with Uniform Acceleration 9:32am

vi - initial velocity (m/s) vf - final velocity (m/s)

We know the following of Newton’s equations of motion:

Final Velocity and Acceleration Equations

Speed, Acceleration, Velocity Lecture Poster

t Vf - vi Acceleration Problem Set Name: ______________________

Unit 1: Intro to Physics Speed & Velocity.

There are 5 kinematic equations that we will study.

Deriving the equations of motion

Motion Measuring Motion Motion Speed & Velocity Acceleration

u - initial velocity (m/s) v - final velocity (m/s)

In this section you will:

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

vf2 = vi2 + 2a ∆x vf2 - vi2 2a (0 m/s)2 – (26.8 m/s)2 = ∆x 2(-3m/s2)

Objective I will analyze and interpret data

Presentation transcript:

AVERAGE VELOCITY: V = d/t V = (Vi + Vf)/2

Final Velocity: Vf = Vi + at Changing A= Δv/t gives you: On reference table

FINDING VALUES WITHOUT TIME: Ex: A car traveling at 14m/s brakes until it has a velocity of 10 m/s. If it traveled 30m, what is the cars acceleration? (10m/s)2= (14m/s)2 +2 (A)(30m) 100 = 196+60A - 96 = 60A A= -1.6 m/s2 Vf2 = Vi2 + 2ad

DISPLACEMENT FORMULA: d = Vit + 1/2at2 Ex: A car traveling with a velocity of 10m/s accelerates at a rate of 3m/s2 for 5.0 seconds. How far does it travel ? d= 10m/s(5sec) + ½ (3m/s2)(5sec)2 d= 50m + ½(75m) d= 50m + 37.5m d= 87.5m

SOLVING PROBLEMS Carefully read problem List and label information Determine which formula to use Plug in values Calculate Write the answer with units

Dimensional Analysis: Showing units on both sides of a formula are consistent Vf = Vi + A(t) m/s = m/s + m/s2(s) m/s = m/s + m/s (correct) d= V/(2A) m = (m/s)/(m/s2 ) m = (m/s)(s2/m) m ≠ s (bad formula)