can change a direction of a force
pulleys help you pull up heavy things like huge rocks.
Gym pulleys Window blinds elevator pulleys garage door pulleys
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 :(
The exact date of when pulleys were first used by humans is not known, but evidence suggests it was utilized in ancient Mesopotamia around 1500 BCE. Pulleys were later further developed by the ancient Greeks and Romans for various tasks such as lifting heavy objects and constructing buildings.
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.
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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.
A compound machine that consists of both fixed and movable pulleys is known as a block and tackle. This system combines multiple pulleys to reduce the amount of force needed to lift heavy loads. The fixed pulleys change the direction of the force applied, while the movable pulleys help distribute the weight, making lifting easier and more efficient.
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.