Forces forces everywhere
This presentation is the property of its rightful owner.
Sponsored Links
1 / 5

Forces, Forces Everywhere PowerPoint PPT Presentation


  • 114 Views
  • Uploaded on
  • Presentation posted in: General

Forces, Forces Everywhere. An investigation of frictional forces around us. Forces. Newton’s 2 nd law: F=m*a Weight is an example of Force Gravity is an example of Acceleration Forces can be described by the direction in which the acceleration acts Forces acting on surfaces Normal Force.

Download Presentation

Forces, Forces Everywhere

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Forces forces everywhere

Forces, Forces Everywhere

An investigation of frictional forces around us


Forces

Forces

  • Newton’s 2nd law: F=m*a

    • Weight is an example of Force

    • Gravity is an example of Acceleration

  • Forces can be described by the direction in which the acceleration acts

  • Forces acting on surfaces

    • Normal Force


Nonconservative forces

“Nonconservative” Forces

  • Friction

    • Proportional to the normal force

    • Exists for motionless and moving objects.

    • Ff=μN

  • Drag

    • Proportional to velocity of fluid or object

    • Fd=(½)ρv2CdA

      • Density, velocity, drag coefficient, area


Purpose

Purpose

  • We will experiment with friction by examining the force needed to move two surfaces past each other, and analyze the force-position data to calculate frictional coefficient(s).


Hypothesis

Hypothesis

**Think about these questions**

Will the roughness of the wheels and sliding surface (floor) have an effect on the force required to move the car?

How are we comparing surface roughness?


  • Login