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A pulley system that has multiple pulleys in line with each one having its output drive the next will increase the force. This would be called a tackle pulley.
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What is the definition of output and input work?
Work Input- The work done on a machine as the input force acts through the input distance. Work Output - The work done by a machine as the output force acts through the output distance (What the machine does to the object (dependent on the force) to increase the output distance).
A machine with a machanical advantage of 2.5 requires an input force of 120 newtons what output force is produced by this machine?
If the machine were ideal ( 100% effiency) the output force would be 300 N In practice you might get 250 - 270.
How does input force output orce and load force work together in a lever?
because if there wasn't an input force, or any one of those, the machine would not work properly
How do machines multiply force without multiplying work?
Work is the (force)*(distance)*(cosine of angle between force and distance). Therefore if you increase the force but the work remains the same either the distance has been reduced or the angle has changed.
In order for a pulley to work properly which force must be overcome?
The output and input forces.Archimedes was a great mathematician and engineer who was born in 287 BC in Syracuse, Sicily. He is credited with the development of many of our modern day mathematical and mechanical principles (such as Archimedes' principle, the concept of pi, and geometric proofs) and machines like the lever, a pump, and pulleys. According to Plutarch, Archimedes had stated in a letter to King Hieron that he could move any weight with pulleys; he boasted that given enough pulleys he could move the world! The king challenged him to move a large ship in his arsenal, a ship that would take many men and great labor to move to the sea. On the appointed day, the ship was loaded with many passengers and a full cargo, and all watched to see if Archimedes could do what he said. He sat a distance away from the ship, pulled on the cord in his hand by degrees, and drew the ship along "as smoothly and evenly as if she had been in the sea." Archimedes understood the concept of mechanical advantage and how to use it to move or lift heavy objects with less force. The mechanical advantage of a machine is the ratio of the output and input forces that are used within the machine. A good mechanical advantage is a number that is greater than 1. The output force generated should be larger than the input force used to start the machine. For a simple machine like a pulley or a lever, these forces are easy to determine. For a pulley, the output force is the weight of the object and the input force is the force applied on the end of the rope. A force is a push or a pull on an object or machine that may cause an action. Forces are measured in units of pounds-force (lbf) or newtons (N). A newton is a kilogram times a meter divided by seconds squared (N = kg m/s2). A force is a vector; it has both a magnitude (numerical value) and a direction. If an object is held up by a rope, for example, it has a force called the weight (the mass times the gravitational acceleration) acting downward, and it causes a tension in the rope, which acts upward. If the object is in equilibrium, the downwards weight of the object will be equal to the upwards tension. When something is in equilibrium, it means that it is not moving; all the forces are balanced. A book sitting on a table is in equilibrium. The weight of the book is balanced by the reaction force of the table on the book. The study of objects with forces in equilibrium is called Statics. Archimedes knew that he could improve his mechanical advantage for lifting or moving an object by using pulleys. A pulley is an object that is usually round with a smooth groove around its outside edge. A pulley transfers a force along a rope without changing its magnitude. When engineers work with pulleys, they often assume that the rope through the groove of a pulley moves smoothly and evenly, without catching. They say it moves without friction. When two rough surfaces are rubbed together (like two wooden blocks), they become warm; the heat is caused by friction. If the two surfaces were slicked with oil and then rubbed together, they would move much more smoothly and very little heat would be generated. There is much less friction. Engineers also assume that the pulley and rope weigh very little compared to the weight on the end of the rope, so they can ignore these two weights and make their calculations with only the heavy weight on the end of the rope. The first figure shows a single pulley with a weight on one end of the rope. The other end is held by a person who must apply a force to keep the weight hanging in the air (in equilibrium). There is a force (tension) on the rope that is equal to the weight of the object. This force or tension is the same all along the rope. In order for the weight and pulley (the system) to remain in equilibrium, the person holding the end of the rope must pull down with a force that is equal in magnitude to the tension in the rope. For this simple pulley system, the force is equal to the weight, as shown in the picture. The mechanical advantage of this system is 1! The output force is the weight to be held in equilibrium and the input force is the applied force. The pulley in the first figure is a fixed pulley; it doesn't move when the rope is pulled. It is fixed to the upper bar. In the second figure, the pulley is moveable. As the rope is pulled up, it can also move up. The weight is attached to this moveable pulley. Now the weight is supported by both the rope end attached to the upper bar and the end held by the person! Each side of the rope is supporting the weight, so each side carries only half the weight (2 upward tensions are equal and opposite to the downward weight, so each tension is equal to 1/2 the weight). So the force needed to hold up the pulley in this example is 1/2 the weight! Now the mechanical advantage of this system is 2; it is the weight (output force) divided by 1/2 the weight (input force). Each additional figure shows different possible pulley combinations with both fixed and moveable pulleys. The mechanical advantage of each system is easy to determine. Count the number of rope segments on each side of the pulleys, including the free end. If the free end is to be pulled down, subtract 1 from this number. This number is the mechanical advantage of the system! To compute the amount of force necessary to hold the weight in equilibrium, divide the weight by the mechanical advantage! In the third figure, for example, there are 3 sections of rope. Since the applied force is downward, we subtract 1 for a mechanical advantage of 2. It will take a force equal to 1/2 the weight to hold the weight steady. The fourth figure has the same two pulleys, but the rope is applied differently and it is pulled upwards. The mechanical advantage is 3, and the force to hold the weight in equilibrium is 1/3 the weight. Each additional figure shows another possible pulley configuration and lists the force necessary to lift and hold the weight still. The mechanical advantage for the system will be the number in the denominator of the force.These systems are known as simple pulley systems because they use the same rope throughout the system. If the pulleys were attached with several different ropes (not one continuous rope), the system would be a complex pulley system. The force necessary to hold a complex pulley system in equilibrium would have to be computed using other Statics methods. Once it was known, however, the mechanical advantage of the system would still be computed by dividing the weight to be held by the force applied to hold it!
What would be done to increase the compressor speed on a belt-driven compressor?
increase drive pulley size
Would an increase in contractility cause an increase to cardiac output?
Yes - an increase in contractility would lead to an increase in stroke volume. An increased stroke volume would cause an increased cardiac output.
What is an example of output force?
An output force is a force that results from an input force. For example, initially pushing something is an input force. The output force would be the force that it is moving with because of the input force.
Where are the input force and output force on a pair of scissors?
The input force or the effort on a pair of scissors would be the force applied by your hands on the handles. The output force or load would be the blades of the pair of scissors.
Kind of pulley that is not movable?
The major two types of simple pulleys are movable and fixed. An example of a fixed pulley would be a flag pole. The pulley is fixed in place while someone pulls on one end of the rope to lift the flag on the other end, the input force and the output forces being equal in magnitude but opposite in direction.
As the number of sunspots increases would the suns energy output also increase or decrease?
Yes, it would be increase.
Would glucose in urine increase output or decrease it?
increases
How could engineers remodeling a hydroelectric plant increase power output from the plant without replacing its magnet?
you could increase the height of the dam so that water will flow faster. that force of the water would give it more power.
What effect does stimulation of the acetylcholine receptors of the heart have on cardiac output?
The effect would be an increase in cardiac output. However, there is a maximum level and then the heart would not have time to fill fully and the output would decrease.
What effect does stimulation of acetylcholine receptors of the heart have on cardiac output?
The effect would be an increase in cardiac output. However, there is a maximum level and then the heart would not have time to fill fully and the output would decrease.
What is the definition of output and input work?
Work Input- The work done on a machine as the input force acts through the input distance. Work Output - The work done by a machine as the output force acts through the output distance (What the machine does to the object (dependent on the force) to increase the output distance).
What would be the output force if the input force is 2.5n?
That completely depends on what kind of machinery is between the input and the output. The only thing we can say for sure is that . . . (2.5n) x (the distance it travels) is equal to (output force) x (distance it travels) + (energy lost in the machinery) .
