what kind of mechanical advantage does a simple pulley have
A fixed pulley has a mechanical advantage of one, however, it is able to change the direction of force on an object. A movable pulley has a mechanical advantage of two and is connected to the object being moved.A block and tackle pulley provides a mechanical advantage of three and is made up of fixed and movable pulleys. Calculating the mechanical advantage of a pulley:ith a pulley, the user pulls one end of the rope and the other end of the rope pulls up on the object you want to move. The force produced by the user of the pulley is called the input force and the force pulling up on the object is called the output force.