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1 markTurning Forces

CSEC Physics · 2021 · Paper 2 · Question 2(c)(iii)

A non-uniform wooden plank AB of length 2.0 m and weight 1000 N is supported from a ceiling by two vertical springs P and Q, attached 0.5 m from each end. When the plank is horizontal, tension in spring P is 600 N.

State why the centre of gravity is located closer to the point P than the point Q.

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Other parts of this question

  1. 2(a)(i)Define the term moment of a force.[3 marks]
  2. 2(a)(ii)Define the term centre of gravity.[2 marks]
  3. 2(b)State the TWO conditions necessary for a body to be in equilibrium.[2 marks]
  4. 2(c)(i)Calculate the tension in Spring Q. Show ALL working.[2 marks]
  5. 2(c)(ii)By taking moments about A, determine the horizontal distance from P to C.[5 marks]

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