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MHT CET20249 May 2024Evening ShiftPhysicsCenter of Mass, Momentum and CollisionActual

A metal rod of weight ' W ' is supported by two parallel knife-edges A and B . The rod is. in equilibrium in horizontal position. The distance between two knife-edges is ' r '. The centre of mass of the rod is at a distance ' x ' from A. The normal reaction on A is

Options

  1. AW r x
  2. BW x r
  3. CW (r-x) x
  4. DW ( r - x ) r

Correct answer

D. W ( r - x ) r

Step-by-step solution

For equilibrium, aligned & N ₁ r = W ( r - x ) & N ₁= W ( r - x ) r aligned

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