Question

why is vr of single moveable pulley 2?give appproprate reason

Answer 1

Answer:

its is bcz

Explanation:

Load L is attached to the movable pulley. A rope is fixed at a point in ceiling that passes through the movable pulley.

In order to lift the load L by X meters, the effort E needs to travel the distance of 2X meters. (The entire rope needs to be pulled by E for a distance of 2X.)

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

So it becomes : 2X/X. This equals to 2

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

Answer 2

Answer:

Load L is attached to the movable pulley. A rope is fixed at a point in ceiling that passes through the movable pulley.

In order to lift the load L by X meters, the effort E needs to travel the distance of 2X meters. (The entire rope needs to be pulled by E for a distance of 2X.)

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

So it becomes : 2X/X. This equals to 2

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