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No, a pulley redistributes the work making it easier but at the end of the pull it will be the same amount of work.
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∙ 11y ago
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How does a movable pulley make work easier?
A fixed pulley is the only pulley that when used individually, uses more effort than the load to lift the load from the ground. The fixed pulley when attached to an unmovable object e.g. a ceiling or wall, acts as a first class lever with the fulcrum being located at the axis but with a minor change, the bar becomes a rope. The advantage of the fixed pulley is that you do not have to pull or push the pulley up and down. The disadvantage is that you have to apply more effort than the load
Can work done on a system decrease its thermal energy?
Yes. As an example: if you define a refrigerator as your system, the work done on the system causes heat to be expelled from the system to the surroundings. The net heat expelled will be equal to the work input plus the decrease in its thermal energy.
How does a spring pulley system work?
A single sheeve pully has only one wheel a multiple sheeve pully has more than one wheel.
What does a pulley do for car?
The purpose of a pulley is that it can lift heavier things at a quicker pace. Some examples of a pulley is a ski lift and alot of roller coasters have them also. I hope i have helped at least a little bit!!! (:
What is the biggest pulley in the world?
The largest pulley in the world is actually used in a giant moose statue in Toronto, Canada.
Does a pulley make work easier by changing the direction of force?
Yes. It can also decrease the amount of work needed in exchange for a long distance.
Why do people need the pulley?
to increase and decrease the speeds gradully
The cooler you have has a 14inch pully if you change it to a 12 inch pulley will it blow harder?
If you decrease the size of the driven pulley the fan will turn faster. You can achieve the same effect by increasing the size of the drive pulley.
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.
Ma of a pulley?
M.a. of a pulley is how much the machine makes work easier
What are the differences between a fixed pulley and a moving pulley and how do each of them change work?
The difference between a fixed pulley and a movable pulley is, the wheel of a fixed pulley does not move because the wheel is attached to a wall, ceiling, or other object. Unlike a fixed pulley, a movable pulley's wheel does move. The wheel on a movable pulley is not attached to a wall or other object. A fixed pulley changes work by changing the direction of a force. A movable pulley changes work by reducing the input force needed to lift heavy objects. A movable pulley changes the direction of the input force and reduced it. A movable pulley also increases the output force.
When you straighten up your work space do you increase or decrease the entropy of your work space?
decrease
How does the work you get out of a pulley compare with the work you put into it?
The WORK is the same. Work = force times distance. If the pulley allows you to pull half as hard, you will have to pull over twice the distance (length of rope), making the same total work. (Ignoring friction; you would actually have to do slightly more work to overcome the friction in the pulley.)
Can your car work with a malfunctioning idler pulley?
The Answer is no.
How do you decrease the amount of force needed to do work?
Decrease friction.
Do pulleys make you work less?
No. If you are, say, lifting a weight the amount of work done is the same whether you use a pulley or not. However, you may not be able to actually lift the weight unless you use a pulley. But the amount of work done will be the same with or without the pulley.
What is the difference between a fixed pulley and movable pulley?
The difference between a fixed pulley and a movable pulley is, the wheel of a fixed pulley does not move because the wheel is attached to a wall, ceiling, or other object. Unlike a fixed pulley, a movable pulley's wheel does move. The wheel on a movable pulley is not attached to a wall or other object. A fixed pulley changes work by changing the direction of a force. A movable pulley changes work by reducing the input force needed to lift heavy objects. A movable pulley changes the direction of the input force and reduced it. A movable pulley also increases the output force.
