3.6 Rigid Bodies (A-level only)

Question 2

A window cleaner's ladder $AB\,$ has a mass of 15 kg and a length of 6 m. The ladder is modelled as a uniform rod. It rests with its lower end $A\,$ on a rough horizontal pavement and its upper part against a smooth horizontal rail at point $C$ . Given $A C = 5$ m and the ladder is in limiting equilibrium. The ladder makes an angle $\alpha\,$ with the horizontal, where $tan⁡α=3/4\tan \alpha = 3/4$ . The coefficient of friction at the ground is $μ\mu$ .

Calculate the value of $μ\mu$ .

[8]

3.6 Rigid Bodies (A-level only)

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Question 2

A window cleaner's ladder $AB\,$ has a mass of 15 kg and a length of 6 m. The ladder is modelled as a uniform rod. It rests with its lower end $A\,$ on a rough horizontal pavement and its upper part against a smooth horizontal rail at point $C$ . Given $A C = 5$ m and the ladder is in limiting equilibrium. The ladder makes an angle $\alpha\,$ with the horizontal, where $tan⁡α=3/4\tan \alpha = 3/4$ . The coefficient of friction at the ground is $μ\mu$ .

Calculate the value of $μ\mu$ .

[8]

3.6 Rigid Bodies (A-level only)

Question 2

Markscheme

3.6 Rigid Bodies (A-level only)

Question 2

Markscheme

3.6 Rigid Bodies (A-level only)

Question 2

3.6 Rigid Bodies (A-level only) Questions

3.6 Rigid Bodies (A-level only)

Question 2

3.6 Rigid Bodies (A-level only) Questions