A fixed and movable pulley system has 50-1 mark-

Given, Efficiency = 50 Effort = T Free body diagram of the system: nbsp; Load nbsp;= nbsp;4T nbsp;We nbsp;know nbsp;that, nbsp;Mechanical nbsp ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VI

Physics

Mechanical Advantage

A fixed and m...

Question

A fixed and movable pulley system has 50% efficiency. Find the velocity ratio of the system.

[1 mark]

2^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2^{3}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

3^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3^{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $2^{3}$
Given,
Efficiency = 50%
Effort = T

Free body diagram of the system:

$L o a d = 4 T W e k n o w t h a t, M e c h a n i c a l a d v a n t a g e = \frac{L o a d}{E f f o r t} M e c h a n i c a l a d v a n t a g e = \frac{4 T}{T} = 4 E f f i c i e n c y = \frac{M e c h a n i c a l a d v a n t a g e}{V e l o c i t y r a t i o} \frac{50}{100} = \frac{4}{V e l o c i t y r a t i o} V e l o c i t y r a t i o = 8 = 2^{3}$

Suggest Corrections

Similar questions

In a single movable pulley system, a load of 225 kgf is lifted by an effort of 75 kgf. Velocity ratio of the single movable pulley is 4. Find the percentage efficiency of the system.

Q. A pulley system has a single fixed pulley and a single movable pulley. Find out its mechanical advantage.

Q. Calculate the mechanical advantage and velocity ratio if there are 2 movable pulleys and one fixed pulley arrangement system.

Q. Fig, shows a system of four pulleys. The upper two pulleys are fixed and the lower two are movable. What is the velocity ratio of the system?

Q. A block and tackle system has

50

% efficiency. Find the velocity ratio of the system.

Join BYJU'S Learning Program

A fixed and movable pulley system has 50% efficiency. Find the velocity ratio of the system. [1 mark]

The correct option is B 23Given, Efficiency = 50% Effort = T Free body diagram of the system: Load = 4T We know that, Mechanical advantage = Load EffortMechanical advantage = 4TT = 4 Efficiency =Mechanical advantageVelocity ratio50100= 4Velocity ratioVelocity ratio = 8 = 23

A fixed and movable pulley system has 50% efficiency. Find the velocity ratio of the system.

[1 mark]