Is resistance force
Publish: 2021-04-17 22:34:25
1. The rear wheel is the driving wheel
the power directly acts on the rear wheel to provide power conversion into kinetic energy
the front wheel is the driven wheel
the movement of the rear wheel drives the front wheel to rotate, so it is resistance
the power directly acts on the rear wheel to provide power conversion into kinetic energy
the front wheel is the driven wheel
the movement of the rear wheel drives the front wheel to rotate, so it is resistance
2. Resistance is named from the effect of force
forces with negative inner proct of velocity vector can be called resistance, and forces with positive inner proct can be called dynamic force
as for how to calculate, it depends on what force the resistance is
for example, dynamic friction is dynamic friction coefficient × Positive pressure
forces with negative inner proct of velocity vector can be called resistance, and forces with positive inner proct can be called dynamic force
as for how to calculate, it depends on what force the resistance is
for example, dynamic friction is dynamic friction coefficient × Positive pressure
3. Belong to! You see rocket launch, isn't gravity a kind of resistance
the tides of the moon and the earth also slow down the rotation of the earth.
the tides of the moon and the earth also slow down the rotation of the earth.
4. The force that prevents an object from moving is called resistance. If friction is also resistance, friction f = positive pressure n × friction coefficient μ， wait; All kinds of resistance.
5. The pressure is measured by itself, and the total pressure is the pressure at the outlet minus the pressure at the inlet
6. The friction resistance of the wheel is actually the friction torque. In high school physics, the problem of finding the friction resistance of wheels is not strict. It's just seen as resistance. It's not friction, because static friction doesn't work (the point of action of the force doesn't move). Energy is just resistance. The method is that the work done by the combined external force is equal to the change of kinetic energy. The total work minus the work done by other forces, that is, the work done by the rubbing force. So f = w / s
the theoretical mechanics of college physics can be solved
the theoretical mechanics of college physics can be solved
7. It depends on the motion state of the object without friction. When the object is stationary or moving in a straight line at a constant speed without friction, the traction is equal to the resistance
8. Suppose f = AV ^ 2
when the final uniform motion is f = f
then the thrust f = AV ^ 2 has nothing to do with the mass of the object and the friction coefficient
when the final uniform motion is f = f
then the thrust f = AV ^ 2 has nothing to do with the mass of the object and the friction coefficient
9. Resistance is relative to power, which is divided according to the effect of force. The buoyancy and friction of a body sinking by water are opposite to the direction of motion. If it hinders its motion, it can be regarded as resistance. If "resistance" in the title refers to
frictional resistance
, it should not be regarded as buoyancy.
frictional resistance
, it should not be regarded as buoyancy.
10. SolidWorks 2012 flow simulation pipeline friction and resistance hydrodynamics video
you search this on the Internet, there is a video
you can only search it by yourself instead of posting a website here.
you search this on the Internet, there is a video
you can only search it by yourself instead of posting a website here.
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