describe a single pulley system
A system with a single fixed pulley would require the least effort force to lift the load. In this system, the load is attached to the rope that passes over the pulley, with the other end of the rope attached to an anchor point. This arrangement changes the direction of the force required to lift the load, making it easier to lift.
a pulley
The mechanical advantage of the pulley system in this case would be 3. This is calculated by dividing the distance the rope is pulled (6m) by the distance the load is lifted (2m).
If you are talking about a simple pulley with the pulley attached and load rope attached to the object then you will need a little more than 75N of force. Lifting an object (at a constant velocity) requires a force equal but opposite the weight of the object. With any simple machine you will need to do more work to overcome friction. If you were to use a single pulley with the pulley attached to the object then you will need a little more than 37.5 N. If you were to use a multiple pulley system then you would need to know the mechanical advantage of the pulley system.
In a 2-pulley system, the force required to move a 100-pound object would be halved. Therefore, the force needed would be 50 pounds. This is because the weight is distributed between the two sides of the pulley system, reducing the amount of force required to move the object.
A system with a single fixed pulley would require the least effort force to lift the load. In this system, the load is attached to the rope that passes over the pulley, with the other end of the rope attached to an anchor point. This arrangement changes the direction of the force required to lift the load, making it easier to lift.
The mechanical advantage would be 1 because the force required to life the mass of an object becomes 1/2 the original weight of the object.
a pulley
A pulley system that has multiple pulleys in line with each one having its output drive the next will increase the force. This would be called a tackle pulley.
The mechanical advantage of the pulley system in this case would be 3. This is calculated by dividing the distance the rope is pulled (6m) by the distance the load is lifted (2m).
Efficiency is the proportion of energy usefully used. Using a pulley system does not use less energy it just changes the ammount of force. Pulleys do have a small ammount of friction so having just one pulley would be more efficient. (but not much more)
Although a single pulley doesn't offer a mechanical advantage as does the compound pulley, sometimes it can be helpful to change the angle. For example, when lifting an object, it may not be desirable or possible to stand directly above or below it. A single pulley allows one to stand to the side and pull. It also eliminates the friction associated with pulling a rope over a sharp edge, which would be the case if pulling at an angle over the edge of, say, a rooftop.
If you are talking about a simple pulley with the pulley attached and load rope attached to the object then you will need a little more than 75N of force. Lifting an object (at a constant velocity) requires a force equal but opposite the weight of the object. With any simple machine you will need to do more work to overcome friction. If you were to use a single pulley with the pulley attached to the object then you will need a little more than 37.5 N. If you were to use a multiple pulley system then you would need to know the mechanical advantage of the pulley system.
In a 2-pulley system, the force required to move a 100-pound object would be halved. Therefore, the force needed would be 50 pounds. This is because the weight is distributed between the two sides of the pulley system, reducing the amount of force required to move the object.
A Conveyor belt's head pulley is also known as the drive pulley, its on this end of a conveyor system where the motorized pulley is installed. At this point the conveyed material is discharged "wherever" and the belt wraps around and begins its return cycle. The head pulley is at the discharge so that the conveyed material is "pulled" through the system vs. having the tail pulley motorized which would be forcing the system to "push" the belt containing the conveyed material.
Chains mesh with sprockets without slipping. A pulley system would need to use higher tension(and suffer higher losses) to avoid slipping.
what adjectives describe a single celled protozoan?