Physics, 21.04.2020 23:34 larueeee25
Learning Goal: To learn the definition and applications of angular momentum including its relationship to torque. By now, you should be familiar with the concept of momentum, defined as the product of an object's mass and its velocity: pโ =mvโ . You may have noticed that nearly every translational concept or equation seems to have an analogous rotational one. So, what might be the rotational analogue of momentum? Just as the rotational analogue of force Fโ , called the torque ฯโ , is defined by the formula ฯโ =rโ รFโ , the rotational analogue of momentum pโ , called the angular momentum Lโ , is given by the formula Lโ =rโ รpโ , for a single particle. For an extended body you must add up the angular momenta of all of the pieces. There is another formula for angular momentum that makes the analogy to momentum particularly clear. For a rigid body rotating about an axis of symmetry, which will be true for all parts in this problem, the measure of inertia is given not by the mass m but by the rotational inertia (i. e., the moment of inertia) I. Similarly, the rate of rotation is given by the body's angular speed, ฯ. The product Iฯโ gives the angular momentum Lโ of a rigid body rotating about an axis of symmetry. (Note that if the body is not rotating about an axis of symmetry, then the angular momentum and the angular velocity may not be parallel.)
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Physics, 21.06.2019 17:10
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Physics, 21.06.2019 23:00
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Physics, 22.06.2019 00:20
2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?
Answers: 1
Learning Goal: To learn the definition and applications of angular momentum including its relationsh...
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