1 / 5

Chapter 11: Motion

Chapter 11: Motion. Section 11.3 Acceleration. Acceleration. The rate at which velocity changes is acceleration. Acceleration can be described as: Change in speed Change in direction Change in both Acceleration is a vector. The SI unit for acceleration is m/s 2 .

adonis
Download Presentation

Chapter 11: Motion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Chapter 11: Motion Section 11.3 Acceleration

  2. Acceleration • The rate at which velocity changes is acceleration. • Acceleration can be described as: • Change in speed • Change in direction • Change in both • Acceleration is a vector. • The SI unit for acceleration is m/s2. • Constant acceleration is a steady change in velocity. (Think of an airplane taking off.)

  3. Calculating Acceleration • For objects moving in a straight line acceleration can be found using the following formula: Acceleration = change in velocity Total time OR Acceleration = (vf - vi) t

  4. More Calculations • Acceleration can be positive or negative. (Think about speeding up or slowing down.) • Solve: • A car traveling at 10 m/s starts to decelerate steadily. It comes to a complete stop in 20 seconds. What is its acceleration?

  5. Graphs of Accelerated Motion • The slope of a speed-time graph is acceleration. • Constant acceleration is shown by a linear graph. • If the slope is positive, the acceleration is positive. • If the slope is negative, the acceleration is negative.

More Related