Multiple choice

Two people weighing W each are sitting on a plank of length L floating on water at $\frac{L}{4}$ from either end. Neglecting the weight of the plank, the bending moment at the centre of the plank is

  1. $\frac{WL}{8}$
  2. $\frac{WL}{16}$
  3. $\frac{WL}{32}$
  4. zero

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation