You don"t have to pull the full weight. They reduce the force needed to move an object.
A pulley can make your life easier by allowing you to lift heavy objects with less effort. By utilizing the mechanical advantage provided by a pulley system, you can distribute the weight of the load across multiple ropes and pulleys, reducing the amount of force required to lift the object. This can make tasks like lifting furniture, hoisting equipment, or raising sails much more manageable.
Yes, a pulley make work easier by changing the direction of the force needed to lift an object. It allows you to pull downward on the rope instead of lifting upwards, which can reduce the amount of effort required to lift the object.
A fixed pulley does not make the force applied easier, it changes the direction of this force. For example, instead of bending over and lifting and object, a fixed pulley lets you lift it by pulling down on a rope.
A single pulley changes the direction of the force needed to lift an object, making it easier to lift by allowing you to pull downwards rather than upwards. It does not reduce the amount of work needed, but it helps in exerting the force in a more convenient direction.
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>
The pulley makes work of lifting easier then lifting by hand.
it deacreases the input force
A pulley can make your life easier by allowing you to lift heavy objects with less effort. By utilizing the mechanical advantage provided by a pulley system, you can distribute the weight of the load across multiple ropes and pulleys, reducing the amount of force required to lift the object. This can make tasks like lifting furniture, hoisting equipment, or raising sails much more manageable.
Yes, a pulley make work easier by changing the direction of the force needed to lift an object. It allows you to pull downward on the rope instead of lifting upwards, which can reduce the amount of effort required to lift the object.
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A fixed pulley does not make the force applied easier, it changes the direction of this force. For example, instead of bending over and lifting and object, a fixed pulley lets you lift it by pulling down on a rope.
Simply put, a simple machine makes the work much easier. Simple machines reduce the amount of force needed to do the work. A pulley, for instance, is a great example of a simple machine.
Because they both reduce friction, making your work easier
Because they both reduce friction, making your work easier
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With Physics; less work to lift heavy objects.
A pulley decreases the amount of work needed to lift an object by distributing the force required over multiple ropes and pulleys. This reduces the amount of force needed by the person pulling the rope, making it easier to lift the object.