Download presentation

Presentation is loading. Please wait.

Published byJoanna Woodland Modified over 3 years ago

1
P H Y S I C S Chapter 2: Two-Dimensional Motion Section 2A: Adding and Resolving Vectors Objectives: 1)We differentiate a scalar and vector 2)We will add and resolve vectors

2
Scalar vs. Vector Scalar only magnitude (numerical value) Vector magnitude and direction Distance Speed Mass Temperature Volume Energy Density Power Work Displacement Velocity Acceleration Force Momentum Weight

3
Scalar or Vector 1)75.2 degrees 2)55 km west 3)33.0 m/s @ 19.0 o 4)98.4 m 5)8 m to the left 6)14.0 cm 7)16 km NW 8)25 km/h Scalar Vector Scalar Vector Scalar Vector Scalar

4
Vectors Represented with an arrow Length = Magnitude Angle = Directionθ

5
Adding Vectors Rules: added in any order moved maintaining orientation added tip-to-tail 3 m east 4 m north Resultant = 5 m NE

6
Adding Vectors Which of the following is the correct orientation for adding these two vectors? WRONG RIGHT

7
Adding Vectors adjacent opposite hypotenuse θ

8
In-Class Example #1 Tom leaves home and drives 3 km north and then 5 km east to get to work. What is the total distance travelled and his total displacement? ∆x = 5.83 km θ xoxo x

9
Projectile Projectile: An object thrown/launched and curves due to gravity Path: Trajectory Shape: Parabola

10
Which hits the ground first? gg

11
Demo

12
Which hits the ground first? Motion in the x and y directions are independent of each other

13
Projectile Motion x-dir motion not affected by gravity (y-dir)

14
Projectile Motion Gravity (y-dir) not affected by x-dir motion

15
Determining Hang Time of a Horizontally Launched Projectile If projectile is horizontally launched then v i(y) = 0 Determine y i and y f yo yo y

16
Determining the Range of a Horizontally Launched Projectile If projectile is horizontally launched all velocity v i is in x-dir v i = v i(x) Determine time using y direction v o = v o(x)

17
In-Class Problem #1 A marble rolls off a table that is 0.85 m high and lands 1.25 m from the base of the table. a) How long was the marble in the air? b) What was the marble’s initial velocity? t = 0.42 s v o = 2.98 m/s

Similar presentations

OK

Advanced Physics Chapter 3 Kinematics in Two Dimensions; Vectors.

Advanced Physics Chapter 3 Kinematics in Two Dimensions; Vectors.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Training ppt on soft skills Maths ppt on linear equation in two variables Ppt on online library management Ppt on information technology act Ppt on sources of energy for class 8th examination Converter pub to ppt online student Ppt on western culture vs indian culture Ppt on duty roster template Ppt on any man made disaster Ppt on data collection methods in nursing