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?
- moving Q nearer to O
-
moving P nearer to O
- addding a weight Q to Q
- moving P further away from O
The correct answer is: 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
There is an explanation video available .