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How does increasing the number of pulleys affect the ideal mechanical advantage and efficiency of pulley system?
Wiki User
∙ 11y ago
Ideal mechanical advantage is the mechanical advantage when the efficiency of the pullefy system is 100%. It is a constant for that system of pulleys. Therfore it is not affected by increasing or decreasing the load.
The MA of a pulley is equal to the number of supporting ropes.
If the load is supported by one rope , the M.A of the system is 1. Efficiency is 1 for ideal pulley ( No loss of energy due to friction)
If the load is supported by two ropes , the M.A of the system is 2. But Efficiency is still 1 for ideal pulley ( No loss of energy due to friction)
If the load is supported by three ropes , the M.A of the system is 3. Efficiency is still 1 for ideal pulley ( No loss of energy due to friction) .
And so on.
Wiki User
∙ 11y ago
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What is the advantage of adding pulleys to a pulley system?
More mechanical advantage.
Explain why pulleys are in the lever family?
They provide mechanical advantage.
What type of advantage describes the ability of a machine to incresae output force?
Mechanical Advantage [achieved through levers or pulleys]
What is equal to the ideal mechanical advantage of a pulley system?
The ideal mechanical advantage of a pulley system is two times the number of pulleys in the system. This is the amount of force required to get the system moving.
What would be the mechanical advantage of a pulley system with four moving pulleys?
Assuming they are all part of the torque-multiplier, and the hauling end is moving parallel with the load end, the advantage is 4:1.
How can you increase a pulleys mechanical advantage?
By increasing the effort distance on the machine.
What would happen to a pulley system if the load were increased?
Ideal mechanical advantage is the mechanical advantage when there is no friction. It is the mechanical advantage when the efficiency of the pullefy system is 100%. It is a constant for that system of pulleys. Therfore it is not affected by increasing or decreasing the load. But actual mechanical advantage will be less than this ideal mechanical advantage due to friction. In other words the efficiency will be less than 100 %. If the efficiency is 80%, it implies 20% is wasted due to friction while lifting a load. If we increase the load the friction also increases and hence the efficiency will decrease with the load.
What is the advantage of adding pulleys to a pulley system?
More mechanical advantage.
Explain why pulleys are in the lever family?
They provide mechanical advantage.
What is the mechanical advantage of systems of pulleys?
The mechanical advantage of the pulley system is the inertia and friction of the unbalanced and balanced forces acting on the mechanical advantage which is part of the pulley system....
a pulley system uses a 250-N force to lift a 2,740-N crate, What is the mechanical advantage of the system?
Answer: Mechanical advantage can be achieved just by adding more loops or pulleys. It is given that to lift a crate, a pulley system exerts a force of 2,740 newtons. It is required to find the mechanical advantage of the pulley system if the input force is 250 newtons What is the mechanical advantage of the pulley system if the exerted force changes from 2,740 newtons to 250 newtons? As if the force does some work, it increases the distance. Mechanical advantage does nothing with the number of pulleys. It only depends on the weight that is to be lift. Also, F1/F2 = 2740/250 = 10.96 The multiple pulleys create mechanical advantage. It can be achieved just by adding more loops or pulleys. Therefore, Mechanical advantage can be achieved just by adding more loops or pulleys.
What will increase the actual mechanical advantage of a machine?
Common mechanisms for obtaining mechanical advantage would include such as multiple pulleys, hydraulic systems, gears, and levers.
What type of advantage describes the ability of a machine to incresae output force?
Mechanical Advantage [achieved through levers or pulleys]
Which machine has the greatest mechanical efficiency a block and tackle or a lever?
In theory there is no difference in efficiency (it would be 1), but in practice I think a block and tackle would lose more force to friction in the pulleys and between the rope and pulleys.
What is equal to the ideal mechanical advantage of a pulley system?
The ideal mechanical advantage of a pulley system is two times the number of pulleys in the system. This is the amount of force required to get the system moving.
What are advantages of single fixed pulleys?
There is no mechanical advantage. It's a directional advantage. You change the direction of the force to be applied to your advantage, so you can use stronger muscles, a beast of burden, etc.
Explain why an infinite amount of pulleys doesn't give an infinite mechanical advantage?
An infinite number of pulleys has an infinite amount of friction, which means you cant move the system no matter how hard you pull.
