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A single pulley is one of the "simple machines" in physics, and makes work seem easier by redirecting the action required to work along with gravity. For example, you can lift something by by pulling down on a rope.<br><br>Multiple pulleys make work even easier, but you need to do more of it: running a rope through six pulleys will make the load seem 1/6 as heavy, but you'll have to pull the rope six times as far.<br><br>A handy guide to the simple machines is here: http://teacher.scholastic.com/dirtrep/Simple/pulley.htm<br>
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How does a pulley help people do work?
it makes the load that you carrying lighter
How is a pulley useful?
I think a pulley is useful because it can help you and other people to.
How does a pulley help us in life?
A pulley can help us in life so we don't have to lift heavy things on our own
Ma of a pulley?
M.a. of a pulley is how much the machine makes work easier
Is a flag pole a pulley?
No. However, it does usually have a pulley at the top to help raise the flag.
How does a pulley help people do work?
it makes the load that you carrying lighter
Which simple machine can help us to move a sail on a sailboat?
pulley
How does a pulley decrease work?
No, a pulley redistributes the work making it easier but at the end of the pull it will be the same amount of work.
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.
How is a pulley useful?
I think a pulley is useful because it can help you and other people to.
How does a pulley help us in life?
A pulley can help us in life so we don't have to lift heavy things on our own
Ma of a pulley?
M.a. of a pulley is how much the machine makes work easier
Is a flag pole a pulley?
No. However, it does usually have a pulley at the top to help raise the flag.
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.
Type of pulley that has additional numbers of ropes that help to increase mechanical advantage?
Fixed Pulley!!
How pulley help?
can change a direction of a force
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.)
