A beam of uniform mass is hinged at its midpoint. Two weights are positioned on the beam as shown, and an upward force $F$ keeps the beam in equilibrium. What is the magnitude of $F$?
- A6.0 N
- B12 N
- C30 N
- D60 N
Physics 5054 · O Level · Turning effect of forces
A beam of uniform mass is hinged at its midpoint. Two weights are positioned on the beam as shown, and an upward force $F$ keeps the beam in equilibrium. What is the magnitude of $F$?