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How can pulleys be used to reduce the force in lifting up an object?
Wiki User
∙ 15y ago
They convert distance into force. So putting a pulley on a load would result in you having to haul up twice as much rope, but lifting about half of the weight of the load. Multiple pulleys increase rope length and further decrease force required to move the load.
Wiki User
∙ 15y ago
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What pulleys are attached to an overhead structure and change the direction of force?
Lifting pulleys are attached to an overhead structure, and change the direction of force. You pull down, and the pulley pulls up.
How much force exert when lifting an object?
a force of depend on mass
What does a pulley cause?
When used appropriately, a pulley can be used to reduce the amount of force needed to move an object. By using multiple pulleys, one can change the direction that force needs to be applied to move an object, as well as reducing the amount of force that is necessary through mechanical advantage.
What is a Disadvantage of a fixed pulley?
The pulley does not reduce the force needed for lifting an object. Also, the pulley can't readily move to another location, but that may be an advantage depending on the application.
Does a pulley use less force?
There are a variety of different designs for pulleys, depending upon what you need to do with them. A pulley can be used to change the direction of a force without changing the amount of force that you apply, but there are also pulleys that do reduce the amount of force you have to use to lift something.
What pulleys are attached to an overhead structure and change the direction of force?
Lifting pulleys are attached to an overhead structure, and change the direction of force. You pull down, and the pulley pulls up.
How much force does one exert when lifting an object?
The force would be the weight of the object.
How much force exert when lifting an object?
a force of depend on mass
What does a pulley cause?
When used appropriately, a pulley can be used to reduce the amount of force needed to move an object. By using multiple pulleys, one can change the direction that force needs to be applied to move an object, as well as reducing the amount of force that is necessary through mechanical advantage.
What tasks did the ancient use the pulley for?
Pulleys reduce the force required to lift heavy objects.
What is a Disadvantage of a fixed pulley?
The pulley does not reduce the force needed for lifting an object. Also, the pulley can't readily move to another location, but that may be an advantage depending on the application.
Does a pulley use less force?
There are a variety of different designs for pulleys, depending upon what you need to do with them. A pulley can be used to change the direction of a force without changing the amount of force that you apply, but there are also pulleys that do reduce the amount of force you have to use to lift something.
Can the number of pulleys affect the amount of force to lift a heavy objects to a high place?
Increasing the number of pulleys divides the force required to lift up a heavy object; increasing the number of pulleys decreases the force needed by the person (or motor) pulling the first end of the pulley system. However, it is important to know that it does not affect the total work needed to lift up the object. As the force is decreased, the distance of rope needed increases to compensate for a conserved amount of work required for the load to be lifted.
Do you use more force using 1 pulley to pull an object or 1 or more pulleys?
More force is exerted with one pulley.
Does a machine magnify the force that you exert?
Absolutely. four of the most basic machines do exactly that. A lever increases the force you exert by how close the fulcrum is to the object being move, and how far the applied force is away from the fulcrum. A screw transfers rotational force (torque) to a lifting force, and increases that force based on the pitch of the threads. A wedge increases lifting force based upon the pitch of the wedge from horizontal. A pulley, when using more than one, will increase the applied force, on an order of magnitude equal to the number of pulleys used. **Note: the total work applied equals the total work transmitted less friction. The force applied times the acceleration equals the work, the machines reduce the acceleration to increase the force transmitted.
How is IMA determined for pulleys?
IMA for pulleys is the resistance force divided by the effort force.
Will the force applied to lift a brick reduce if you use pulleys?
yes, pulley will help IF not the if YOU USE COMBINE TWO OR MORE PULLEYS. Yes, using a pulley or a system of pulleys will reduce the force needed to lift a brick (or anything). HOWEVER the distance that the rope (or whatever effects the pulley system) has to now travel further so that the energy required to lift the brick through an equal height is always the same.
