answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: How much force must be used to pull down 100 lbs by a rope using 3 pulleys?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How much force is used to lift 100 lbs using 3 pulleys?

30


Can the number of pulleys affect the amount of force to lift a heavy objects to a high place?

Increasing the number of pulleys divides the force required to lift up a heavy object; increasing the number of pulleys decreases the force needed by the person (or motor) pulling the first end of the pulley system. However, it is important to know that it does not affect the total work needed to lift up the object. As the force is decreased, the distance of rope needed increases to compensate for a conserved amount of work required for the load to be lifted.


How can pulleys be used to reduce the force in lifting up an object?

They convert distance into force. So putting a pulley on a load would result in you having to haul up twice as much rope, but lifting about half of the weight of the load. Multiple pulleys increase rope length and further decrease force required to move the load.


How are pulleys used in everyday life?

pulleys are used in everyday life in many different situations and mechanisms. This is understandable because pulleys when used and set up correctly can lift or move a weight that is much greater than the force exerted upon the pulley. they are used in crane systems.


How would you measure the force needed to lift 50kg of shingles onto a roof using a pulley?

50 kg (on Earth) weighs about 110 pounds. If you're using a simple, singlepulley with a rope passing over it, then that's the pull you need on the rope tolift the bundle of shingles. If you're using a block and tackle arrangement ofmultiple pulleys, then you'll get away with much less pulling force on the rope,but you'll have to pull the rope much farther.


What is proportionate force?

Exerting force in a porportional manner, not using too much or too little force.


Do pulleys systems change how much work you do?

It makes work easier, because its less work, the more pulleys, the easier


How much down force is needed to lift a helicopter?

The same force as the weight of the helicopter and its crew and cargo.


With how much force does a ramp push a ball rolling down it?

A ramp exerts no force, just gravity.


How many pulleys are needed to lift a heavy load?

It depends on the size of the load and your strength. Archimedes pull a trimaran up onto the shore all by himself using a system of twenty pulleys.


What is the force that makes an object slow down?

Friction is the force that slows objects down. Especially when combined with another force, such as gravity. When you have low friction, such as on ice, you slow down much slower than when you have high friction, such as on a road.


When you are standing on ground how much upward force exerted on you why does this force not lift u up?

Because there is an equal and opposite force pulling you down: gravity.