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What type of machine is used to get a flag up a flagpole?
a flag pole is a pulley
What are the uses of a single pulley?
AnswerA single pulley can change the direction of a pulling line. The direction change may help in pulling the line over a corner or around an obstacle. Or the direction change may allow better use of the available pulling force. Also, the single pulley can relocate the pulling point.For example, suppose we wish to lift a weight some distance into the air. If I am the pulling force, then my first problem is that I cannot lift the weight any higher than I can reach. But if the pulling line is looped over a pulley some distance above my head, relocating the pulling point, I can potentially lift the weight just about up to the pulley's height. And now the pulley has given me another advantage. I can leverage my own weight, pulling down on the line, to lift the weight upward.
What is the disadvantage of a fixed pulley?
the disadvantage of a fixed pulley is not to push it down and up
Is a swing an example of a lever?
no. lever is a simple machine used to help make work easier. the monkey bar is a structure where children can play and exercise.
Is a staircase a example of a lever?
The stairs alone are not. A lever is a simple machine that is used to lift an object up easier because instead of pulling up against gravity you are pushing down with it but still lifting the same weight. A lever needs to have a pivot point which stairs don't have. This pivot point is called the fulcrum. Stairs are actually considered an incline plane, another type of simple machine.
What type of machine is used to get a flag up a flagpole?
a flag pole is a pulley
What is a pulley in science?
It is a wheel that allows for the vector (direction) of a force to be changed. So if I was pulling down on a pulley, the pulley could turn that into me pulling something up.
What simple machine is a flag?
pulley as we are pulling it up ad down as we need
Is a windlass crank a pulley?
yes it is because it helps when pulling things up and down
How is a single fixed lever different from a first class lever?
In a single fixed pulley, you pull (apply force) straight down (pull down). In a first-class lever you push up (apply force) , but not push.
What makes up a wheel and axle?
Lever and pulley
How are fixed pulley's similar to first class levers?
Fixed pulleys are similar to, and are considered by many to be, first class levers. In a first class lever, the fulcrum of the lever is placed between the load (resistance) and force (effort). In a fixed pulley, this is essentially the same. Picture a piece of rope hanging from a ceiling from one end, and with you holding the other end. A weight on a pulley is placed in the middle. Now, if you pull up on the rope, the weight rises, just like with a first class lever. Since the load is between the fulcrum (the pulley) and the effort (you pulling up), the fixed pulley acts like a first class lever.
If a person wants to raise the 100 N weight how much downward force must he exert on the rope?
If you have a single pulley, then you would need to exert 100N + an amount to overcome friction in your pulley.If you have 2 pulleys, rope connected to a beam at top, descends through pulley on item lifted, and back up through pulley at the top and then down to where you are pulling. Then the force is split in half and you would exert 50N + an amount to overcome friction.If you connect a rope to the item, up through a double pulley, down through a pulley on the item, and back up through the double pulley again and down to the person who is pulling. Then you divide the force into thirds, and the force is 33.3N + an amount to overcome friction.Essentially count the upward pulling ropes and divide by that number. A rope simply looping over a pulley that you're hanging onto the other end of only counts as once, and would be no different from you pulling up directly on the object, or on a pulley connected to the object.
What 2 simple machines make up a typewriter?
lever and pulley
What are the uses of a single pulley?
AnswerA single pulley can change the direction of a pulling line. The direction change may help in pulling the line over a corner or around an obstacle. Or the direction change may allow better use of the available pulling force. Also, the single pulley can relocate the pulling point.For example, suppose we wish to lift a weight some distance into the air. If I am the pulling force, then my first problem is that I cannot lift the weight any higher than I can reach. But if the pulling line is looped over a pulley some distance above my head, relocating the pulling point, I can potentially lift the weight just about up to the pulley's height. And now the pulley has given me another advantage. I can leverage my own weight, pulling down on the line, to lift the weight upward.
How do you get the battery out of a Volvo s40 to change it?
You have to pull a plastic clip/lever up until it pops out. That will free your battery. You may have to rock it by pushing down and pulling up to loosen the clip.
How can you lift a crate with a hook as does the ceiling up with a pulley and some rope?
By changing the pulling direction
