The value of T in the figure above is?

A. 30N
B. 10.0N
C. 20N
D. 40N

Correct Answer: Option D

Explanation

Tsin30 + Tsin30 =40

2Tsin30 = 40

Tsin30 = 40/2 = 20

T(½) = 20

T = 20 x 2 = 40N