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simple machines
A trade-off is obtained between the force required to move an object and the distance through which it is moved. You can use less force over a longer distance so that you can raise an object that you would not be able to lift.The efficiency of a plane depends on the work done in overcoming friction.
The idea here is to multiply the force by the distance.
Trade is considered a noble profession in Islam. The Muslim traders traveled long distances for trade. They not only earned profit but also spread Islam to the for off lands.
Yes. Gravity drops off at the square of the distance. So the further you are from something the less the force of gravity you experience.
More distance, less force
A pulley system is a force multiplier. That means you trade distance for force. You pull the rope a long way to lift the load a short way, but the force you need is reduced.
That means that if you use a simple machine to apply less force, you need to compensate by applying the force over a larger distance - for example, to lift up a weight or do some other work.
The simple machines - a lever for example - are usually designed so that you need less force. In compensation, you need to move the lever for a greater distance. This follows directly from the law of conservation of energy.
i do not now
simple machines
Mechanical advantage: you can use some method (eg, lever or pulley wheels) to move an object which otherwise would be too heavy, or jammed. The trade off is that you can't get away with using less work - the reduced force you need to apply is compensated by the fact you have to move your force throgh a proportionately larger distance.
A trade-off is obtained between the force required to move an object and the distance through which it is moved. You can use less force over a longer distance so that you can raise an object that you would not be able to lift.The efficiency of a plane depends on the work done in overcoming friction.
Ben 10 Alien Force - 2008 Trade-Off 3-11 was released on: USA: 4 December 2009
Bike gears work like levers. A set amount of effort can be turned into either a long and weak motion, or a short and strong motion. Imagine opening a door by pushing either close to the hinges or close to the lock. A short push by the hinge will make the door move a big distance, but you have to push hard While if you push by the edge it'll be easy, but the door will only move a short distance.
Mechanical advantage
The force of gravity never disappears, not at any distance. But it does get weaker and weaker at larger distances, and at a distance of a few million kilometers it is quite insignificant for most practical purposes.