Pulley-Block System

A block and tackle system has $5$pulleys. If an effort of $1000 \mathrm{N}$ is required in the downward direction to raise a load of $4500 \mathrm{N}$, then 

calculate :

(1) The mechanical advantage

(2) The velocity ratio.

(3) The efficiency of the system

The mechanical advantage of the multi block movable pulley system is $x^n$. The value of $x$ is _____.

Deduce the relation between the acceleration of the load and effort  in a movable pulley system. 

What is a movable pulley system? Mention its advantage and disadvantage.

In the arrangement, find the mass $\mathrm{M}$ such that block of mass $1 \mathrm{kg}$ moves with uniform velocity. Neglect the mass of the pulleys and the string. Also, neglect friction between the surfaces.

A bucket with mass${\mathrm{m}}_2$ and a block with mass ${\mathrm{m}}_1$ are hung on a pulley system. Find the magnitude of the acceleration with which the bucket and the block are moving and the magnitude of the tension force $\mathrm{T}$ by which the rope is stressed. Ignore the masses of the pulley system and the rope. The bucket moves up and the block moves down.

What is the velocity ratio of a single movable pulley

Determine the mechanical advantage in a single movable pulley.

What is movable pully system?

A pulley with two blocks system is attached to the ceiling of a lift upward with an acceleration ${\mathrm{a}}_0$Find the deformation in the spring

Cotyledons are also called-