1 / 5

60 likes | 312 Views

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.
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

**Forces, Forces Everywhere**An investigation of frictional forces around us**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**• 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**• 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****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?

More Related