Alongside Figure Of Two Pulleys Shown System In Which One Pulley Fixed And Other Is Movable

In the alongside figure of two pulleys shown a system in which one pulley is fixed and … mechanical advantage and efficiency of the…

Answers:

If there are n movable pulleys connected to a fixed pulley, then velocity ratio is

V.R = 2ⁿ 

Velocity ratio of the system = 2.

Mechanical Advantage = Load/Effort = 1000/600

= 5/3

Efficiency = M.A./V.R.

= (5/3)/2 = 5/3 x 2 = 5/6 

= 83.3%.