Pulley used for change direction of the force, e.g. pull the weight up is change direction form pulling up to pulling down. Pulley arrangement can use to reduce the load require to lift object, e.g. fix rope to wall and put load hanging on pulley and pull 1 end so the wall support half of the load.
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yes the do have pulleys
Many people use pulleys in their jobs. The rides like Supreme scream, which go vertically up and down have pulleys in them. Elevators have pulleys in them, and people who ship cargo use pulleys in their cranes.
Not entirely sure what you mean but maybe this will help: In general the more pulleys you have in your system the less force you will need to apply to lift a certain load, in this case the system of pulleys is generally called a "block and tackle".
Archimedes (not a group, a guy) invented pulleys as well as other simple machines.
assuming that your question is what jobs are pulleys used for... then the answer is any job that you need to lift something that is heavy. The pulley give a mechanical advantage when used together with other pulleys to apply more force to move the object
pulleys help you pull up heavy things like huge rocks.
Some examples of pulleys in everyday life include flagpoles, elevators, and exercise machines. These devices use pulleys to help lift and move objects with less force required.
can change a direction of a force
the timing belt and pulleys driven the cameshaft at half carnk speed(engine speed) pulleys is connected to the crankshft front end of the engine. I donno weather this answer help or not :(
Most lifts have one or two pulleys which help in moving the elevator cab up and down the elevator shaft. The number of pulleys can vary depending on the design and type of elevator system being used.
i don tknow ar all
By A Sytem of ropes that make it eaiser to lift things that are to heavy to lift without help.
Pulleys in a flagpole system help to make raising and lowering the flag easier by distributing the force required. The pulley system allows for the flag to be hoisted and lowered with less effort as the weight is distributed between multiple ropes and pulleys. The more pulleys used, the easier it is to operate the flagpole system.
Household objects that use pulleys are blinds, garage doors, and clothes lines are just a few examples. Hope this may help!! Cheers!!
Some examples of pulleys in a house include clothesline pulleys, window blind pulleys, and garage door pulleys. These pulleys help to make tasks like lifting heavy objects or adjusting blinds easier by distributing the force needed.
There are three main types of pulleys: fixed pulleys, movable pulleys, and compound pulleys. Fixed pulleys are attached to a stationary object, movable pulleys move with the load, and compound pulleys combine fixed and movable pulleys for increased mechanical advantage.
Pulleys make life easier by reducing the amount of force required to lift heavy objects. By using multiple pulleys in a system, the force needed to lift an object is distributed across the pulleys, making it easier for a person to lift the load. This can help increase efficiency and reduce strain on the person's body.