Lecture 03: Rotational Dynamics II: 2nd Law
... What cause angular accelerations ? A door is free to rotate about an axis through O There are three factors that determine the effectiveness of the force in opening the door: ...
... What cause angular accelerations ? A door is free to rotate about an axis through O There are three factors that determine the effectiveness of the force in opening the door: ...
Lecture 12 - McMaster Physics and Astronomy
... • The magnitude of the force • The direction of the force • The location at which the force is applied • The point which you assume as the “pivot” or axis of rotation. In two-dimensional problems, torque is either “clockwise” or “counterclockwise” (we can take one sense as positive, and the other as ...
... • The magnitude of the force • The direction of the force • The location at which the force is applied • The point which you assume as the “pivot” or axis of rotation. In two-dimensional problems, torque is either “clockwise” or “counterclockwise” (we can take one sense as positive, and the other as ...
CH 10
... System of particles: here we deviate again from the notion of a rigid body introduced in chapter 9. A system of particles is a collection of N particles of mass m1, m2, … mN but it is not necessarily rigid. For example a group of meteorites traveling in space, although not rigid, is a system of par ...
... System of particles: here we deviate again from the notion of a rigid body introduced in chapter 9. A system of particles is a collection of N particles of mass m1, m2, … mN but it is not necessarily rigid. For example a group of meteorites traveling in space, although not rigid, is a system of par ...
Physics 103-02 Exam IV 4 Dec
... Part C: Work the following problem. Show your work, and use words and phrases to describe your reasoning. [10 points] 16. An ideal string is wrapped around a pulley. Hanging from the free end of the string is a mass, m = 4.0 kg. The axle of the pulley is frictionless, but the string does not slip o ...
... Part C: Work the following problem. Show your work, and use words and phrases to describe your reasoning. [10 points] 16. An ideal string is wrapped around a pulley. Hanging from the free end of the string is a mass, m = 4.0 kg. The axle of the pulley is frictionless, but the string does not slip o ...
44. During projectile motion, which flight component does gravity
... 197. Give an example of the analogue of Newton’s 1st law of motion. Divers & gymnasts able to achieve aerial manoeuvres by manipulation of moment of inertia & angular velocity due to constant angular momentum (remains constant due to absence of external torque) 198. The Analogue of Newton’s 2nd La ...
... 197. Give an example of the analogue of Newton’s 1st law of motion. Divers & gymnasts able to achieve aerial manoeuvres by manipulation of moment of inertia & angular velocity due to constant angular momentum (remains constant due to absence of external torque) 198. The Analogue of Newton’s 2nd La ...
Concept Questions
... falls.We choose coordinates such that as the mass falls, the rotor undergoes an angular acceleration with a positive component α1 > 0. After the string detaches from the rotor, the rotor coasts to a stop with a component of angular acceleration α2 < 0. Let g denote the gravitational constant. What i ...
... falls.We choose coordinates such that as the mass falls, the rotor undergoes an angular acceleration with a positive component α1 > 0. After the string detaches from the rotor, the rotor coasts to a stop with a component of angular acceleration α2 < 0. Let g denote the gravitational constant. What i ...
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
... because rS , f and f k are anti-parallel. The gravitation force acts at the center of mass k ...
... because rS , f and f k are anti-parallel. The gravitation force acts at the center of mass k ...
Concept Questions
... inertia about that axis. By pushing the weights out, the moment of inertia has increased. If the applied torque is constant then the component of the angular acceleration must decrease. ...
... inertia about that axis. By pushing the weights out, the moment of inertia has increased. If the applied torque is constant then the component of the angular acceleration must decrease. ...
Force in Mechanical Systems
... If the clockwise and counterclockwise torques cancel each other out, then the system is in equilibrium and its rotational state does not change. If the opposing torques do not cancel each other out, then the net torque will cause a change in the rotational speed of the system. ...
... If the clockwise and counterclockwise torques cancel each other out, then the system is in equilibrium and its rotational state does not change. If the opposing torques do not cancel each other out, then the net torque will cause a change in the rotational speed of the system. ...
