Question

A man weighing 600N stands on a horizontal beam of negligible weight at C and holds a string passing over two smooth pulleys and is attached to point B on the beam as shown in the figure. The tension in the string is

• A. 100 N
• B. 400 N
• C. 600 N
• D. 1200 N

Answer 1

The correct option is B 400 N


$\sum M_o=600\times 4-T\times 4-T\times 2=0$

$\therefore T=400N$