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How do you calculate the friction in a pulley?
To find the velocity ratio of a pulley, you must first find the effort and load distances. then you divide the two and there you have you VR (velocity ratio).
What speed does an object have to go to break free of the atmosphere?
If you want it to get away from Earth's gravitational field, the object would need a speed of 11.2 km/sec - obviously not considering energy lost by friction with the atmosphere.If you want it to get away from Earth's gravitational field, the object would need a speed of 11.2 km/sec - obviously not considering energy lost by friction with the atmosphere.If you want it to get away from Earth's gravitational field, the object would need a speed of 11.2 km/sec - obviously not considering energy lost by friction with the atmosphere.If you want it to get away from Earth's gravitational field, the object would need a speed of 11.2 km/sec - obviously not considering energy lost by friction with the atmosphere.
How is motion affected by friction and how does the law of conservation apply to this?
Friction is a general term applied to the force on something that is applied to it by something that it is moving on or through. If a car is moving along the highway, there is friction between the road and the tires. There is also friction in the wheel bearings. (Lubrication helps limit this.) The friction, the forces between the two things that are moving, appears as heat energy. And by the law of conservation of energy, if something is moving across something else, there will be a bit of energy lost due to friction, but it will have to be conserved - it will have to appear somewhere else because it can't just "disappear" without being accounted for. Friction energy is conserved (law of conservation of energy) and heat results. If someone is doing a project that involves using an abrasive on a material, someone might be sanding wood or metal (or another material). The sandpaper and the material being sanded will get warm as sanding continues. The friction created between the abrasive and the material appears as heat. The energy is conserved; it cannot be lost nor can it simply disappear. Links follow.
When a body slides over a surface the kinetic friction and static friction related as?
Kinetic friction is the friction that applies when an object is moving; static friction is the friction that applies when the object is not moving. Static friction must always be greater than, or equal to, kinetic friction.
Is rolling friction greater than sliding friction?
Typically not. However rolling friction is somewhat of a myth. Rolling friction is actually caused by static friction. There are really only two types of friction: Static and Kinetic. That's it! Rolling friction is caused by static friction and the coefficient of friction (which determines its strength) is dependent upon the two materials of interaction.
Why the load cover very small distance with respect to effort?
Effort is lost in friction .
What force opposes the effort force?
load force and friction oppose the effort force
If tight scissors have an efficiency of 50 percent half of your effort is wasted due to what?
It is due to friction.
Why will a pendulum eventually stop?
Energy will be lost, mainly through friction.Energy will be lost, mainly through friction.Energy will be lost, mainly through friction.Energy will be lost, mainly through friction.
Why is friction a bad thing?
Friction isn't always bad, but when engineers try to avoid or reduce friction, it is because of the energy lost due to friction.
What energy is lost in machine?
Friction energy
The ratio of the resistance force to the effort force is called?
The ratio of resistance force to effort force is a mechanical advantage.
Description of Friction?
Friction is a force that acts to stop the movement of two touching things. The energy lost to friction is turned into sound and heat.
How can energy get lost?
Friction's just one way.
What is a by product of friction?
As a result of friction, kinetic energy is commonly lost; the result is heat energy.
How is wind energy lost?
Whenever there is movement, some energy is invariably lost due to friction.
Why is friction a force?
Friction is considered a force because it acts on an item and causes changes, which is what a force is. Nothing would happen if the item was in an area where friction was not possible or if friction was where an object was not since they need each other to exert external effort.
