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`        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??`
6 months ago

Arun
23013 Points
```							Dear student Use Laami’s theorem Ta / sin 150 = Tb / sin 127 = 20g / sin 83 Now you can solve. RegardsArun
```
6 months ago
Pooja
124 Points
```							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 = 20gTA cos37 = TB cos60So TA/TB  =  cos60/cos37                   =  (3)1/2/2  ÷ 4/5                     = 5(3)1/2 / 8Answer us b
```
6 months ago
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Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions