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Q: Does a combined pulley decreases the amount of force needed to lift load by half?
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How did the pulley affect the amount of force needed?

A pulley is a force multiplier. (it swaps force for distance).


Do the moveable pulley decreases the input force?

Do the moveable pulley decreases the input force?


What is the definition of a combined pulley?

fixed and movable pulleys can be combined.


How does a pulley help a simple machine?

It decreases the force.


What is the purpose of a inclined plane with a pulley?

To reduce the amount of force needed to carry objects into the truck k12


What is the function of pulley?

Pulley reduces the force given to get the work done. There are amny types of pulleys. Examples are fixed pulley, movable pulley and Combined pulley.


What jobs did the pulley do?

A pulley is a wheel with a groove on its edge for holding a rope or cable. pulleys are usally used in sets desinged to reduce the amount or force needed to lift a load.


Which type of machine changes the direction or amount of force needed to do work?

simple machines like pulley, liver and fulcrum.


What are the advantages of a combined pulley?

it helps to reduce effort


What reduces the amount of force needed to do work?

A simple machine. You know, inclined plane, lever, pulley, screw, wheel, or a wedge.


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.


Which type of pulley takes the least amount of work?

It would be more accurate to ask whuch pulley takes the least amount of FORCE. WORK=FORCE X DISTANCE so ultimately the amount of work will be the same depending on how far the load moves. If you are wondering which pully will be the easiest to use than you need to know something about pulleys. Each time a rope passes through a pulley, the amount of FORCE needed to move a load decreases. The more passes the greater the MECHANICAL ADVANTAGE. But, there is a trade off. You may not need to pull as hard, (less force) but you will have to pull more rope (greater distance) to move the load. So the total amount of work remains equal.