no it can have anything that is like a rope, for example a steel cable or my big a s s pen15
A pulley halves the force required to lift a load, but doubles the length of rope or cable. So if you had a 10lb. weight attached to a rope, and were pulling the rope upward, you would need 10lbs. of force to lift it. However, if you had a pulley attached to a beam overhead, and were pulling down on the rope, you would only need 5lbs. of force to move the weight, but you would need to pull twice as much rope to get the weight to move the same distance.
grooves
The load arm is the radius of the pulley. This is the distance from the fulcrum to the load-carrying side of the rope.
Rope is not a simple machine on its own, it's a simple machine on a wheel and axle, then it's a pulley.
A pulley is a wheel with a groove on its edge for holding a rope or cable. pulleys are usally used in sets desinged to reduce the amount or force needed to lift a load.
Rope and pulley.
The part of a pulley where the rope lies is called the groove or the sheave. This is the part of the pulley that provides the surface for the rope to run along while the pulley rotates.
A pulley halves the force required to lift a load, but doubles the length of rope or cable. So if you had a 10lb. weight attached to a rope, and were pulling the rope upward, you would need 10lbs. of force to lift it. However, if you had a pulley attached to a beam overhead, and were pulling down on the rope, you would only need 5lbs. of force to move the weight, but you would need to pull twice as much rope to get the weight to move the same distance.
To create a pulley system, you will need a wheel with a groove, a rope or cable, and an object to lift. Attach the wheel to a fixed point, pass the rope through the groove, and secure one end to the object. Pulling on the free end of the rope will lift the object using the pulley system.
i have acquired a clothes pulley and do not know how to feed the rope through for operation
A pulley. The wheels aren't necessarily grooved; you just need a way to prevent to rope from slipping off the wheel.
To make a horizontal pulley system, you will need a fixed support structure, a pulley wheel, and a rope or cable. Attach the pulley wheel to the support structure and thread the rope through the wheel. Secure one end of the rope to the object you want to move and pull on the other end to create a mechanical advantage for lifting or moving the object horizontally.
A rope goes over the wheel of a pulley and can also be threaded through the grooves to increase friction and grip. The way the rope is positioned on the pulley determines how it will interact with the load being lifted.
A pulley doesn't raise or hoist sails. A pulley is just a wheel that eases a change in direction of a rope. It is a rope that hoists or raises sails. A rope for this purpose is called a Halyard.
The rope pulled over the branch is hampered by the rope's friction over the branch. The same rope pulled over a pulley is not affected by friction as the pulley wheel will turn as the rope is pulled.
A flagpole can be considered a simple pulley system because the rope attached to the flag acts as a type of pulley, allowing the flag to be raised and lowered by pulling on the rope. This system demonstrates how pulleys can be used to change the direction of force to make lifting and lowering objects easier.
a pulley is a wheel with a groove along with a rope or chain.