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Question

As shown in figure the tension in the horizontal cord is 20 N. The weight W  and tension in the string OA in Newton are


Your Answer
A
303,30
Correct Answer
B
203,40
Your Answer
C
603,30
Your Answer
D
403,30

Solution

The correct option is B 203,40

From the figure T sin 30=20                  …(i)
                         T cos 30=W                     ...(ii)
By solving equation (i) and (ii) we get
W=203N and T=40N

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