1 / 5

2000 N

A car is driven from rest. Since it is at rest, the air resistance = 0 N Engine force = 2000 N The car accelerates. 2000 N. Air resistance increases as speed increases. The car still accelerates. Resultant Force = 1700 N. 300 N. 2000 N.

ailani
Télécharger la présentation

2000 N

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. A car is driven from rest.Since it is at rest, the air resistance = 0 NEngine force = 2000 NThe car accelerates. 2000 N

  2. Air resistance increases as speed increases.The car still accelerates.Resultant Force = 1700 N 300 N 2000 N

  3. Air resistance continues to increase until it becomes EQUAL to the engine force.The car does not accelerate any longer and moves at constant speed. The resultant force = O N 2000 N 2000 N

  4. Suddenly a cat crosses the road!The driver applies the brakes and the frictional forces are greater than the engine force.The car decelerates.The resultant force = - 6000 N 8000 N 2000 N

  5. Finally the car stops. The cat is safe!

More Related