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The diagram above shows a plank RS pivoted its center of gravity O and is...

Physics
JAMB 2008

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
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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

There is an explanation video available below.


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Explanation Video

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