Like what you saw?
Create FREE Account and:
- Watch all FREE content in 21 subjects(388 videos for 23 hours)
- FREE advice on how to get better grades at school from an expert
- FREE study tips and eBooks on various topics
M.Ed., George Washington University
Dept. chair at a high school
Matt is currently the department chair at a high school in San Francisco. In his spare time, Matt enjoys spending time outdoors with his wife and two kids.
Speed refers to the rate at which an object travels. Unlike velocity, speed is a scalar quantity so direction does not matter. Average speed is calculated by dividing distance by time (e.g. miles/hour).
Okay we're going to talk about average speed, instantaneous speed is the distance that you're covering at a specific time. So 100 kilometers an hour, average speed is the total distance you're going to cover over a period of time. Okay this would be, well let's do an example, let's say we drive 150 kilometers in 2 hours stop for an hour, drive 150 kilometers in 2 more hours okay what is our average speed? Okay let's solve that, first we want to go our total distance which is 150 kilometers plus zero kilometers plus 150 kilometers over out total time 2 hours plus 1 hour plus 2 hours. So if we add up our total distance, we get 300 kilometers, our total time is 5 hours and we can simplify that, it's always good to simplify down to 60 kilometers an hour. Okay so that's an example of how you solve a problem or calculating the average speed.
Please enter your name.
Are you sure you want to delete this comment?
- Relativity in Motion 25,623 views
- Displacement 19,355 views
- Speed-Instantaneous Speed 14,711 views
- Average Velocity 17,487 views
- Instantaneous Velocity 21,370 views
- Acceleration 18,311 views
- Free Fall 19,120 views
- Graphs of Motion 21,429 views
- Vector Direction 13,802 views
- Vector Quantities - Scalar Quantities 17,497 views
- Velocity Vectors 17,446 views
- Components of Vectors 13,230 views
- Projectile Motion 22,344 views
- Linear Motion 19,397 views
- Parabolic Motion 12,957 views