The value of T in the figure above is
Attached Figure / Diagram
A
10.0N
B
11.8N
C
20.0N
D
40.0N
Verified Correct Answer: C.
Physical Principles & Numerical Solution
The total upward vertical force must balance the downward weight of 20 N.
There are two vertical components:
2 \times (T \times sin(30^\circ)) = 20 N
Sin(30^\circ) = \(\frac{1}{2}\) = 0.5
So:
2 \times T \times 0.5 = 20
T = 20
Source: Myschool Past Questions Archive (Record #41728)