0
It depends on the size of the load and your strength. Archimedes pull a trimaran up onto the shore all by himself using a system of twenty pulleys.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoYou don't need any, the number just depends on how much work you want to do.
Add your answer:
Earn +20 pts
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.
Relationship between position of fulcrum and effort required to lift load?
A relationship between two of it are when load come closer to fulcrum, you need more effort to use. But if load go far away from the fulcrum, you need less effort to use. A relationship between two of it are when load come closer to fulcrum, you need more effort to use. But if load go far away from the fulcrum, you need less effort to use.
A lever is used to lift a load weighing 200N The force needed was 600N What is the mechanical advantage of this first class lever?
3 x 200 N = 600 N.
Where are the load effort and fulcrum located on a second class lever?
No, the function of the fulcrum remains the same The only change would be the ratio of force to load The closer the fulcrum is the the load, the less force required to lift it The farther away the fulcrum is from the load, the more force required to lift it
Why do wheelbarrows have long handle?
Leverage. The longer the handle, the easier it is to lift the load.
How many pulley needed to lift a load?
The number of pulleys needed to lift a load varies based on the size of the load. A very small load can be lifted with just one pulley while large loads may require many pulleys to adequately lift the load.
How does the number of supporting ropes on a pulley affect the amount of force needed to lift the load?
The more pulleys and ropes you add the easier it is to lift
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.
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.
What simple machine can lift a heavy load?
A lever
On a lever how can you reduce the amount of effort needed to lift a heavy object?
by adding more weight to the other side
What are pulleys used?
removing genital warts aka jamesman pulleys are things that lift up thing in a less painfull waya mechanical advantage as far as liftingin wellsElevators, cranes, vacuums, and motors of all types, just to name a few.elevatersa pulley is use to lift loads, apply forces, and transmit power.to make work easier and to lift thing heavier than you and moveable pulleys are used the zipline and cloths lines but what in comes done to is it is a simple machine. answer improved by:kidwhoanswersyou use a pulley to lift a car engineA pulley can be used in a number of ways. The most common use of a pulley, however, is when one needs to lift large, heavy objects, usually with a truck or other large vehicle.the uses of pulley is to carry things above and below and to make distribution of things easier.Pulleys afford a mechanical advantage in, for example, the lifting of heavy or awkward loads to various heights. While pulleys are not particularly efficient (energy is lost to friction, and the pulleys and cables/ropes add their own weight to the load lifted), they allow the application of a lesser force over a greater distance.The effect of a pulley is analogous to the gears of a bicycle; a lower gear makes it easier to turn the pedals, but they must be turned more often for the bicycle to travel the same distance. Likewise, a pulley system makes it easier to lift a load, but the length of cable used to lift the load is greater than the distance the load is lifted. The more pulleys that are used, the easier it is to lift the load, but the longer the length of cable needed to lift the the same distance.Examples of pulley usage in the real world include:- lifting heavy machinery, materials, and tools to heights at building sites.- hoisting patients between a bed and wheelchair using a sling attached to pulleys, allowing the task to be undertaken by a single person.whatpulley is made of picking something upA pulley is a big wheel. It is easier to pull a rope down that to lift something up. Thus, it is easy to attach a rope to a heavy object and throw the rope around the pulley. Then you pull down on the rope. The heavy object goes up.It is used to pull things up or downThe pulley is currently used to easily lift items and objects.
What is the relationship between the amount of effort needed to lift the load and the distance of load from the fulcrum?
confusing
Is It true that an inclined plane allows you to lift a heavy load by using greater force over a shorter distance?
an inclined olane allows you to lift a heavy load by using greater force over a shorter distance
What allows people to lift heavy with little force?
more than force muscles fibres inside the body are mainly responsible for lifting heavy load.force comes from them to lift the heavy load.
What is the objective of hydraulic jack?
To lift heavy objects with ease.
What allows people to lift heavy objects with little force?
more than force muscles fibres inside the body are mainly responsible for lifting heavy load.force comes from them to lift the heavy load.
