Angular momentum and energy
[DOC File]Ch 11 Angular Momentum
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Our textbook proves the kinetic energy of a rigid body consists of both translational and rotational kinetic energy, Ktot ( Ktransl + Krot = ½ m v2 + ½ I 2, where v is the speed of the center of mass of the object and I is the moment of inertia about the center of mass of the object. ...
[DOC File]Rolling motion, angular momentum vector and cross products
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Worksheet 16 –Rotation and Angular Momentum A light flexible rope is wrapped around a solid cylinder of mass M and radius R, which rotates with no friction about a stationary horizontal axis. The free end of the rope is tied a mass m and the mass is released from rest, a distance h from the floor.
[DOC File]The rotational energy levels
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The angular speed is measured immediately before the drop and after the ring stops sliding on the disk. The measurements are repeated with a non-rotating disk being dropped onto a rotating disk. For each situation, the initial angular momentum is compared to the final angular momentum. Initial and final kinetic energy are also calculated and ...
Conservation of Angular Momentum | Boundless Physics
The Angular Momentum of a Rigid Body. For the ith particle, angular momentum: The component of angular momentum parallel to the rotation axis (the z component): The total angular momentum for the rotating body. This reduces to Conservation of Angular Momentum. If no external torque acts on the system, Law of conservation of angular momentum ...
[DOC File]Worksheet 17 – Angular Momentum and Rotation II
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3. (a) The angular acceleration can be found from with . (b) The final angular speed can be found from , with . 4. For a sphere rotating about an axis through its center, the moment of inertia is given by. 5. The energy required to bring the rotor up to speed from rest is equal to the final rotational KE of the rotor. 6. The angular momentum is ...
[DOC File]Worksheet 16 –Rotation and Angular Momentum
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Calculate the kinetic energy and angular momentum of the ball. 2. How high up a ramp can the 7kg ball above roll to? 3. A tangential force of 360 N acts for a time of 5.0 seconds at the edge of a potter’s wheel with radius 50cm and mass 45kg. What is the change in its rotational velocity? 4. An Atwood’s machine has m1 = 1kg, m2 = 2kg, hung ...
[DOCX File]Electrical Equivalent of Heat
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angular momentum. rotational kinetic energy. B A. The pulley shown below has radius R = 20cm and a mass of 2 kg. If the object is considered to be a cylinder (I=1/2Mr2), determine the acceleration of the system, assuming the block slides down the incline. The angle the ramp makes is 25˚ with the horizontal.
[DOC File]COLLISIONS & CM WORKSHEET
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Assuming the orbital angular momentum of the electron is equal to h/2π, calculate. L = I( (a) the orbital speed of the electron. ans: 2.19 x 106 m/s (b) the kinetic energy of the electron. ans: 2.18 x 10-18 J (c) the angular frequency of the electron’s motion ans: 4.13 x 1016 rad/s h = 6.6261 x 10-34. m = 9.11 x 10-31. r = 0.529 x 10-10 (a ...
[DOC File]Angular Momentum
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the energy of a rotating body, expressing it in terms of the angular momentum, and . then importing the quantum mechanical properties of angular momentum into the . equations. The classical expression for the energy of a body rotating about an axis a is. Ea = 1/2 Ia ωa2
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