Question

in a single moveable pulley effort moves by a distance of 4m upward's by what height is the load raised ?​

Answer 1

rope is fi xed at a point in ceiling that passes through the moveable pulley. 

In order to lift the effort E by x meters, the load L needs to 

Travel the distance of x/2 meters. (The entire rope needs to be pulled by E for a distance of x) 

Now, Velocity Ratio equals (Distance traveled by E) divided by (Distance traveled by L) 

So it becomes : x/(x/2). This equals to 2

Since it is a ratio. it has no units of measurement.