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Will the force applied to lift a brick reduce if you use pulleys?
Wiki User
∙ 14y ago
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.
Wiki User
∙ 14y ago
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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 do you find the mechanical advantage of a simple machine?
To find the mechanical advantage of a simple machine divide output force by input force. (input force is the force that we exert on a machine, and output force is the force that is exerted by a machine).
What is the force of the screwdriver?
The strength of your arm is the applied force on a screwdriver.
How does a screwdriver affect the force applied to opening a paint lid?
It increases the applied force and changes its distance and direction. -Novanet
Do you use more force using 1 pulley to pull an object or 1 or more pulleys?
More force is exerted with one pulley.
How does a pulley change the input force?
A single pulley only changes the direction of the applied force. A second or more pulleys on the same rope will multiply the force applied by decreasing the distance of the applied force. This arrangement is called a block and tackle. Two pulleys double the force and halve the distance the force acts upon the mass. Three will triple the force while reducing the distance by 1/3, and so on. If 1 pound of force is applied to a rope with four pulleys on it over the distance of 10 feet of rope it will raise a 4 pound weight 2 1/2 feet.
How does the pulley change the input force?
A single pulley only changes the direction of the applied force. A second or more pulleys on the same rope will multiply the force applied by decreasing the distance of the applied force. This arrangement is called a block and tackle. Two pulleys double the force and halve the distance the force acts upon the mass. Three will triple the force while reducing the distance by 1/3, and so on. If 1 pound of force is applied to a rope with four pulleys on it over the distance of 10 feet of rope it will raise a 4 pound weight 2 1/2 feet.
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.
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 are the functions of pulleys in physics?
Pulleys helps changing the direction of the applied force. The most common example is drawing a bucket of water from a well. Without the pulley it would be laborious to pull a bucket full of water out of the well. With the pulley our applied force's direction change and we can now happily pull the water out of the well.
How does an incline plane reduce amount of input force needed?
by increasing distance over which the force is applied
How is IMA determined for pulleys?
IMA for pulleys is the resistance force divided by the effort force.
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.
What if force is given but displacement is zero then?
Then the resistance is greater than the applied force. It happens all the time - like if you hit your head against a brick wall!
How do you reduce the force of a lever?
The force a lever can apply to a given point greatly depends on two distances:The distance from the pivot point to the object to be lifted and the distance from the pivot point to the point on the lever where force will be applied.To reduce the distance from the pivot-point to the point where Force is applied is to reduce the "force" of a lever.
What is the advantage to using 2 pulleys at the same time?
A single pulley normally gives no mechanical advantage: it changes the direction of the force required.With 2 pulleys the rope or cable is looped around both so that there are several lengths of it pulling the mass. If there are k such strands, each one bears 1/k of the total mass so (if you ignore friction) there is a mechanical advantage of k.____________________________________________The mechanical advantage of two pulleys mounted in a block and tackle is twice the applied force. The lead rope needs to have half the force applied to move the same load, but twice the distance must be moved on the lead rope such that the same total force is applied to the load.
