Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Quick notes Giancoli #1
Document related concepts
Velocity-addition formula wikipedia , lookup
Laplace–Runge–Lenz vector wikipedia , lookup
Theoretical and experimental justification for the Schrödinger equation wikipedia , lookup
Modified Newtonian dynamics wikipedia , lookup
Rolling resistance wikipedia , lookup
Inertial frame of reference wikipedia , lookup
Tensor operator wikipedia , lookup
Classical mechanics wikipedia , lookup
Sagnac effect wikipedia , lookup
Photon polarization wikipedia , lookup
Symmetry in quantum mechanics wikipedia , lookup
Coriolis force wikipedia , lookup
Centrifugal force wikipedia , lookup
Seismometer wikipedia , lookup
Accretion disk wikipedia , lookup
Fictitious force wikipedia , lookup
Length contraction wikipedia , lookup
Angular momentum wikipedia , lookup
Newton's theorem of revolving orbits wikipedia , lookup
Angular momentum operator wikipedia , lookup
Jerk (physics) wikipedia , lookup
Hunting oscillation wikipedia , lookup
Newton's laws of motion wikipedia , lookup
Equations of motion wikipedia , lookup
Rotational spectroscopy wikipedia , lookup
Relativistic angular momentum wikipedia , lookup
Classical central-force problem wikipedia , lookup
Transcript
Chapter 8 Notes in a nutshell 8-1 Rotational motion: 1. A rigid object is an object with a definite shape that doesn’t change. 2. Purely rotational motion means that all points in an object moves in circles and the centers all lie on one line called the axis of rotation 3. To calculate the angular position we use the angle of a line in respect to a reference line such as the x-axis. If r is the radius of the circle and l is the arc length then when l=r, then = 1 rad so l=r and 1 revolution = 360 =2rad 4. In rotational motion the angular velocity () (the omega symbol) = the change in the angle divided by the change in time and is expressed in rads per second.. 5. Angular acceleration () = 2-1/t , Centripetal acceleration = ²r 6. Table 8-1: Notice the quantities for linear and rotational. Make your own notes to represent the table. 7. Frequency = / 2, frequency is the revolutions per second which is measured in hertz 8-2 Constant Angular Acceleration 1. Create a table in your notes that compares angular to linear equivalents from pg. 204 8-3 Rolling motion without slipping 1. When an object is rolling at any given moment as the object is icontact with the ground it is at rest (static friction). There is a simple relation to linear speed of the axle and angular velocity of the wheel which is v = r. 8-4 Torque 1. Where the force is applied (as well as magnitude and direction) affects the rotation 2. Torque is the product of the force times the lever arm. The lever arm is the distance from the axis of rotation to the line along which the force acts.
