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What are the reactions at the knife-edges supporting a 70 cm long metal bar with a mass of 4.00 kg, when a 6.00 kg load is suspended at 30 cm from one end? (Assume the bar to be of uniform cross-section and homogeneous.)

Options

  1. A29.4 N and 29.4 N
  2. B55.0 N and 43.0 N
  3. C39.2 N and 19.6 N
  4. D49 N and 19.6 N

Correct answer

B. 55.0 N and 43.0 N

Step-by-step solution

Correct Option is : (B) 55.0 N and 43.0 N

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