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2.3 Forces and Newton's laws

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Question 42

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

A uniform rod ABABAB, of length 2 m and mass 3 kg, is smoothly hinged to a vertical wall at AAA.

The rod is held in equilibrium in a horizontal position by a light inextensible string BCBCBC, where C C\,C is a point on the wall vertically above A A\,A with AC=1.5AC = 1.5AC=1.5 m.

Figure for question 5

a.

Find the tension in the string BCBCBC.

[3]
b.

Find the magnitude and direction of the force exerted on the rod at AAA.

[3]
Markscheme

2.3 Forces and Newton's laws Questions

  1. A Level
  2. /Maths
  3. /2.3 Forces and Newton's laws

136 exam-style questions on CCEA A Level Maths 2.3 Forces and Newton's laws, covering 2.3.1 Forces and Newton's laws, 2.3.2 Forces and Newton's laws, 2.3.3 Forces and Newton's laws, 2.3.4 Forces and Newton's laws, 2.3.5 Forces and Newton's laws, 2.3.6 Forces and Newton's laws, 2.3.7 Forces and Newton's laws, 2.3.8 Forces and Newton's laws, 2.3.9 Forces and Newton's laws, 2.3.10 Forces and Newton's laws, 2.3.11 Forces and Newton's laws, 2.3.12 Forces and Newton's laws, and 2.3 Forces and Newton's laws. Each one has a worked solution and a mark scheme showing where the marks go.

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