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
-
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
Correct Answer: Option B
Explanation
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