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3 Mechanics

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Question 211

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.

A non-uniform rod AB AB\,AB has length 5 m and mass 12 kg. The rod is held horizontally in equilibrium by two vertical light inextensible strings attached to the rod at A A\,A and at CCC, where AC=4AC = 4AC=4 m.

Figure for question 5

The tension in the string at A A\,A is twice the tension in the string at CCC.

a.

Find the tension in the string at CCC.

[2]
b.

Find the distance of the centre of mass of the rod from AAA.

[3]
Markscheme

3 Mechanics Questions

  1. A Level
  2. /Maths
  3. /3 Mechanics

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