What is the work done by friction
Publish: 2021-04-07 12:06:38
1. Yes, as long as you transfer to the legal currency trading area, it will be realized soon.
2. Work is equal to the proct of the force and the distance that the object passes through in the direction of the force, using the formula w = FS
according to the above formula, the work done by the friction force on the inclined plane w = FS, f is the sliding friction force, f= μ N (n is positive pressure, μ Is the dynamic friction coefficient), s is the passing distance of the object on the inclined plane.
according to the above formula, the work done by the friction force on the inclined plane w = FS, f is the sliding friction force, f= μ N (n is positive pressure, μ Is the dynamic friction coefficient), s is the passing distance of the object on the inclined plane.
3. For small blocks, only increase kinetic energy, 1 / 2mv2, select a
4. Second, the problem of friction work can be solved from the perspective of energy. We can observe that the object stops at 7 meters, which means that all the kinetic energy of the object is used for friction. In the previous stage, the velocity of the two physics is (2 / 3) m / s. Subtract the end kinetic energy 0 from this and you can calculate the kinetic energy change. What friction does is change the kinetic energy of an object.
5. The friction is multiplied by the distance in this direction. Only when the external force and the friction force are equal, can we use the force to overcome the friction force to calculate. From the energy point of view, friction is to convert kinetic energy into heat, and as long as friction has been doing work, it means that friction has been consuming energy. Just think about common sense.
6. According to the kinetic energy theorem, the work done by an object to overcome friction is equal to the change of the kinetic energy of the object. This is because when you apply the kinetic energy theorem, the object of study is an object
the change of the total kinetic energy of the system is equal to the work done by a pair of sliding friction forces, that is, the internal energy generated in the process
experts provide:
the change of the total kinetic energy of the system is equal to the work done by a pair of sliding friction forces, that is, the internal energy generated in the process
experts provide:
7. See what problem, if the general problem, that is, the proct of distance and friction, it may not be solved, this is to ask you indirectly, from the perspective of energy conservation!
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