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A pin jointed uniform rigid rod of weight W and Length L is supported horizontally by an external force F as shown in the figure below. The force F is suddenly removed. At the instant of force removal, the magnitude of vertical reaction developed at the support is
  • a)
    zero
  • b)
    W/4
  • c)
    W/2
  • d)
    W
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A pin jointed uniform rigid rod of weight W and Length L is supported ...

When the Force F is suddenly removed, then due to W, the rod is in rotating condition with angular acceleration α
Thus the equation of motion:

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A pin jointed uniform rigid rod of weight W and Length L is supported horizontally by an external force F as shown in the figure below. The force F is suddenly removed. At the instant of force removal, the magnitude of vertical reaction developed at the support isa)zerob)W/4c)W/2d)WCorrect answer is option 'B'. Can you explain this answer?
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