Forces Ch. 6. Milbank High School. Sec 6.1 Force and Motion. Objectives Define a force and differentiate between contact forces and long-range forces Recognize the significance of Newton’s second law of motion and use it to solve motion problems
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.
Milbank High School
Agent: a specific, identifiable, immediate cause of a force
Draw a picture of your book sitting on the desk. Identify all the forces acting on it.
What forces are acting on a
skier as she races down a hill?
d & f
f and d
Fg = mg
Kinetic Friction Force
Ff ,kinetic = µkFn
Static Friction Force
0< Ff, static < µsFN
Surface µs µk
Rubber on concrete 0.80 0.65
Rubber on wet concrete 0.60 0.40
Wood on wood 0.50 0.20
Steel on steel (dry) 0.78 0.58
Steet on steel (with oil) 0.15 0.06
Teflon on steel 0.04 0.04
5 m/s w/ chute
The Amplitude is the displacement.
The Frequencyis the number of cycles/sec.
The Period is the time for one cycle T = 1/f