Angular momentum and its properties were devised over time by many of the great minds in physics. Newton and Kepler were probably the two biggest factors in the evolution of angular momentum. Angular momentum is the force which a moving body, following a curved path, has because of its mass and motion. Angular momentum is possessed by rotating objects. Understanding torque is the first step to understanding angular momentum.Torque is the angular "version" of force. The units for torque are in Newton-meters. Torque is observed when a force is exerted on a rigid object pivoted about an axis and. This results in the object rotating around that axis. "The torque ? due to a force F about an origin is an inertial frame defined to be ? ? r x F"1 where r is the vector position of the affected object and F is the force applied to the object.To understand angular momentum easier it is wise to compare it to the less complex linear momentum because they are similar in many ways. "Linear momentum is the product of an object's mass and its instantaneous velocity. The angular momentum of a rotating object is given by the product of its angular velocity and its moment of inertia. Just as a moving object's inertial mass is a measure of its resistance to linear acceleration, a rotating object's moment of inertia is a measure of its resistance to angular acceleration."2 Factors which effect a rotating object's moment of inertia are its mass and on the distribution of the objects mass about the axis of rotation. A small object with a mass concentrated very close to its axis of rotation will have a small moment of inertia and it will be fairly easy to spin it with a certain angular velocity. However if an object of equal mass, with its mass more spread out from the axis of rotation, will have a greater moment of inertia and will be harder to accelerate to the same angular velocity.3To calculate the moment of inertia of an object one can imagine that the object...

...L2, and m1, is it always possible to choose m2 such that the masses have no angular acceleration?
For m1 = m2, does the angular acceleration depend only on L1 / L2 ? (If it depends on the actual values of L1 and L2, put 'no'.)
If m1 = m2, will the masses have an angular acceleration?
Problem Weight is: 1 | Tries 0/6 | |
If L1 = 0.490 m, L2 = 1.18m, m1 = 4.10 kg, and m2 = 3.40 kg, what is the angular acceleration...

...Tangential Velocity
(m/s)
AngularMomentum (kg m2/s)
(in red above the rotating ball)
1.85
5.14
2.38
1.40
6.79
2.38
1.00
9.50
2.38
0.80
11.88
2.38
0.60
15.83
2.38
0.40
23.75
2.38
Questions:
1. Using the data you have gathered and your knowledge of the law of conservation of angularmomentum, explain the results for the angularmomentum data column.
- The angular...

...During a test of the system, crank AB is made to rotate with a constant angular velocity of 60 rad/s clockwise. There is no force applied to the face of the piston. When 60the distance between points D and A , d, is 43.081 cm and the angle of connecting rod BD from the horizontal is 30o. Consider this instant when 60, answer the following questions:
d
1.A) Show by kinematic analysis that the angular acceleration of connecting rod BD is...

...wide understanding of the applications of physics into sport, as physical principles such as motion, resistance, momentum and friction play a part in most sports. Learning about the biomechanics behind a volleyball overhand serve and why we need force, acceleration, gravity, levers and power to produce the most optimum serve. The biomechanics principles are force and motion, momentum, leverage and fluid mechanics....

...Assignment – Physics 1
1. Two carts, one twice the mass of the other, experience the same force for the same time. What is their difference in momentum? What is their difference in kinetic energy?
2. A 12 g bullet is fired horizontally into a 96 g wooden block initially at rest on a horizontal surface. After impact, the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.60, what was the speed of the bullet...

...CONSERVATION OF MOMENTUM PRACTICAL WRITE UP
AIM: To investigate if momentum is conserved in two-dimensional interactions within an isolated system.
HYPOTHESIS: Without the effects of friction the momentum will be conserved in the isolated system. In all three experiments the momentum before the interaction will equal the momentum after the interaction.
METHOD: An air hockey table was set up and a video camera on a tripod...

...Angular Kinematics
An object on a point that rotate a fixed axis has circular motion around the same axis. Linear quantities cannot be used for circular motion. This is due to the extended objects rotational motion rather that a particles linear motion. Circular motion, for this reason, is described in terms of the change in angular position. Except for the points on the axis, all the points on a rotating rigid object during any time interval move through the...

...Collision and Conservation of Momentum
Collision, a normal phenomenon in our daily life, also is familiar by people in physics field. As we can imagine, there are many interesting among collision cause our attention to think about what is this exactly about and how does is work or maybe why is that such as there maybe some neutron stars intensely hurtling in outer space or two small eggs hitting each other. Outer space is filled with infinite particles that maybe as small as...