A beam of uniform density is mounted so that it can turn about its midpoint. Three weights, placed as shown, keep the beam in equilibrium. What is the value of $d$?
- A$0.020\,\text{m}$
- B$0.050\,\text{m}$
- C$0.20\,\text{m}$
- D$0.48\,\text{m}$
Physics 5054 · O Level · Turning effect of forces