PPT-Rotational Dynamics General Physics I

Mechanics Physics 140 Racquetball Striking a Wall Mt Etna Stewart Hall Torque The rotating effect of a force is greater if the force is greater The rotating effect of a force is greater if the force is applied .
 \n\r Review of L-21 11.1 - Torque. Increased Force = Increased Torque. Increased Radius = Increased Torque. 11.1 - . Torque. Only the tangential component of force causes a torque:. 11-1 Torque. This leads to a more general definition of torque:. We’ve seen that the translational motion of a complicated object can be accounted for by the motion of the center of mass. Now, we turn to all the other motions with respect to coordinate system moving with the center of mass. Ellen Akers. Radians and Degrees. In degrees, once around a circle is 360˚. In radians, once around a circle is 2. π. A radian measures a distance around an arc equal to the length of the arc’s radius. © 2015 Pearson Education, Inc.. This lecture will help you understand:. Circular Motion . Rotational Inertia. Torque. Center of Mass and Center of Gravity. Centripetal Force. Centrifugal Force. Rotating Reference Frames. Dedra. Demaree, . Georgetown University. © 2014 Pearson Education, Inc.. Rotational Motion. How can a star rotate 1000 times faster than a merry-go-round?. Why is it more difficult to balance on a stopped bike than on a moving bike?. Motion. © 2016 Pearson Education, Inc.. Dynamics of Rotational Motion. (Conservation of angular momentum). Goals for Chapter 10. Torque: “angular force”. To see how torques cause rotational dynamics (just as linear forces cause linear accelerations). HTHS AP Physics 1. M. Dimler. Torque. Torque. is a force that causes an object to turn. Torque. - Force directed perpendicular to the “lever arm” of an object that has the ability to rotate the object around a fulcrum or axis. . Physics 5403: Computational Physics. Physics. 5403: . Computational. . Physics. - . Chapter. 6: . Molecular. Dynamics. 1. 6.0 Overview. What is molecular dynamics (MD)?. Numerical method for studying many-particle systems such as molecules, clusters, and even macroscopic systems such as gases, liquids and solids . Angular Motion.  .  .  .  .  .  . 1.  .  .  .  .  .  .  .  . End Slide.  .  .  .  .  .  .  .  .  . Angular Motion.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . . Translational and Rotational Motion. Torque. Which one of the above . application of force, F is . the easiest to open a door? . Definition of Torque. . Torque . is a vector quantity.. Direction:. Key Concepts. For each translational motion quantity (position, velocity, acceleration, force, mass, momentum, . kinetic energy). there is a rotational quantity. Same equations apply. . Angular velocity (sign!) and . Practice Problems. Newton’s 2. nd. law involving rotations. Practice Problem #2. A person exerts a force of 45.0 N on the end of a door 84.0 cm wide. What is the magnitude of the torque if the force is exerted:. Chapter 8. Magnitude of a Torque. What is a torque?. A quantity that measures the ability of a force to rotate an object around some axis.. r. . Example… . Imagine opening a door around a hinge..