pulley system
There are fixed, moveable, and compound pulleys.
movable single multiple fixed inclined
six fold
A compound machine that consists of both fixed and movable pulleys is a fixed pulley. This machine changes the direction of the force on a rope or belt that moves along its circumference.
thats why i ask stupied
Two kinds of pulleys are the fixed pulley and the movable pulley
That is not always true. Sometimes a fixed pulley is more useful.
fixed and movable pulleys can be combined.
There are two types of pulleys 1. movable pulley 2. fixed pulley
A fixed pulley is a pulley that is attached to a structure and does not move;changes the direction of the effort force used to life a load by a person or a spring scale and if you use a spring scale then you will need a person to pull the spring scale done to see how far she/he pull it A moveable pulley is a pulley that supports the load and is not fixed in place;reduces the amount of effort force needed to pull to lift the load when she/he pulls the spring scale then it will tell she/he pulls it.
single fixed pulley, single movable pulley and single fixed and movable pulley. :-)
There are two basic types of pulleys. When the grooved wheel is attached to a surface it forms a fixed pulley. The main benefit of a fixed pulley is that it changes the direction of the required force. Another type of pulley, called a movable pulley, consists of a rope attached to some surface. The wheel directly supports the load, and the effort comes from the same direction as the rope attachment.