The diagram above shows a plank RS pivoted its center of gravity O and is in equilibrium with the weight P and Q. If a weight 2P is added to P the plank will be in equilibrium again by?
Attached Figure / Diagram
A
moving Q nearer to O
B
moving P nearer to O
C
addding a weight Q to Q
D
moving P further away from O
Verified Correct Answer: B.
Physical Principles & Numerical Solution
If 2P is added P, the beam will bend at R side. So to keep it in equilibrium. P should be moved nearer to 0
Source: WAEC / JAMB / NECO Classroom Archive (Record #14486)