0

Guest

Courses New

A block of mass 20kg is balance by three strings A,B & C as shown in the figure.Ratio of string A and B(TA/TB) is??

A block of mass 20kg is balance by three strings A,B & C as shown in the figure.Ratio of string A and B(TA/TB) is??

Question Image
Grade:12th pass

2 Answers

Arun
25750 Points
4 years ago
Dear student
 
Use Laami’s theorem
 
Ta / sin 150 = Tb / sin 127 = 20g / sin 83
 
Now you can solve.
 
Regards
Arun
Pooja
127 Points
4 years ago
Tension in string A and B be TA and TB respectively.
Angle between the horizontal line and vertical line of string A are 37° and 57° respectively.
 
Angle between the horizontal line and vertical line of string B are 60°and 30°respectively.

Taking components of force and balancing them we get 
TA sin37 +TB sin60 = 20g
TA cos37 = TB cos60
So TA/TB  =  cos60/cos37
                   =  (3)1/2/2  ÷ 4/5 
 
                   = 5(3)1/2 / 8
Answer us b
 
 

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More