* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download V. Nonlinear Motion
Classical mechanics wikipedia , lookup
Jerk (physics) wikipedia , lookup
Brownian motion wikipedia , lookup
Coriolis force wikipedia , lookup
Fictitious force wikipedia , lookup
Velocity-addition formula wikipedia , lookup
Newton's theorem of revolving orbits wikipedia , lookup
Hunting oscillation wikipedia , lookup
Centrifugal force wikipedia , lookup
Work (physics) wikipedia , lookup
Classical central-force problem wikipedia , lookup
Equations of motion wikipedia , lookup
Newton's laws of motion wikipedia , lookup
Motion & Forces V. Nonlinear Motion Projectile Motion Circular Motion Free-fall A. Projectile Motion Projectile any object thrown in the air acted upon only by gravity follows a parabolic path called a trajectory has horizontal and vertical velocities PROJECTILE MINI-LAB A. Projectile Motion Projectile Velocities Horizontal and vertical velocities are independent of each other! A. Projectile Motion Horizontal Velocity depends on inertia remains constant Vertical Velocity depends on gravity accelerates downward at 9.8 m/s2 CFU A moving truck launches a ball vertically (relative to the truck). If the truck maintains a constant horizontal velocity after the launch, where will the ball land (ignore air resistance)? A) In front of the truck B) Behind the truck C) In the truck C) In the truck. The horizontal velocity of the ball remains constant and is unaffected by its vertical motion. Animation from “Multimedia Physics Studios.” B. Circular Motion Centripetal Acceleration acceleration toward the center of a circular path caused by centripetal force B-BALL DEMO PLATE DEMO B. Circular Motion On the ground... friction provides centripetal force B. Circular Motion In orbit... gravity provides centripetal force ROUND LAB B. Circular Motion In orbit... Which satellites travel faster? Near-Earth Satellites Geostationary Satellites C. Free-Fall Free-Fall when an object is influenced only by the force of gravity Weightlessness sensation produced when an object and its surroundings are in free-fall object is not weightless! CUP DEMO C. Free-Fall Weightlessness surroundings are falling at the same rate so they don’t exert a force on the object Go to Space Settlement Video Library. C. Free-Fall Space Shuttle Missions Go to CNN.com. Go to NASA. NASA’s KC-135 - “The Vomit Comet” CFU 1 TRUE or FALSE: An astronaut on the Space Shuttle feels weightless because there is no gravity in space. FALSE! There is gravity which is causing the Shuttle to free-fall towards the Earth. She feels weightless because she’s free-falling at the same rate. CFU 2 Describe the path of a marble as it leaves the spiral tube shown below. It will travel in a straight line since the tube is no longer exerting a net force on it.