A beam PQ pivoted at P carries a load of 80N as shown above. Calculate the effort E, required to keep it horizontal. [neglect the weight of the beam]

A. 32.0N
B. 26.7N
C. 16.0N
D. 13.3N

Correct Answer: Option D

D. 13.3N
Explanation
E x 3 = 80 x 0.5

E3 = 40

E = 40/3=13.3N