Download presentation

Presentation is loading. Please wait.

Published byDylan May Modified over 4 years ago

1
Motion in One Dimension Average Versus Instantaneous

2
Position-Time Graph Where is the animal at time t = 0? What time corresponds to a position of zero?

3
Slope of a Position-Time Graph What is the slope of a position-time graph? Is this graph constant velocity or not? What would the velocity-time graph look like for the graph on the last slide?

4
Distance Versus Displacement Which one is a vector quantity? What is the displacement? What is the distance traveled?

5
Average Velocity Average Speed is total distance divided by total time or the average slope of the line or curve Instantaneous Speed

6
Graphing Position-time graph—slope is the speed Velocity-time graph—slope is the acceleration

7
Slopes Velocity Acceleration

9
Problem A car is located at 30 m at point A, 50 m at point B, 40 m at point C, 0 m at point D, -40 m at point E and –50 m at point F. Equal time intervals separate each point. Sketch the position versus time graph. Find the displacement, average velocity and average speed of the car between A and F.

10
Problem 2 A particle moves along the x-axis. Its position varies with time according to the expression x = -4t + 2t 2 where x is in meters and t is in seconds. A)Determine the displacement of the particle in the time intervals t = 0 to t = 1 sec and t = 1 sec to t = 3 sec. B) Calculate the average velocity during these two time intervals. C) Find the instantaneous velocity at time t = 2.5 sec.

11
Problem 3 The position of an object is given by the equation x(t) = 2 + 4t – t 2, where position is measured in meters and time in seconds. What is the particle’s average acceleration from t = 0 to t = 2?

12
Homework Chapter 2 Questions 1,5,7 Problems 2,5,7,11,16,19

13
Unique Situation Equations All of these equations assume constant acceleration:

14
Derive These

15
Derive Some More

16
Gravity Acceleration is a constant, g. All these equations apply.

17
Homework Problems 23, 29, 32, 35, 38, 39, 41, 44, 47, 55, 57, 62

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google