Question 7.6: Figure 7.32 shows a model for a step-ladder standing on a sm...
Figure 7.32 shows a model for a step-ladder standing on a smooth horizontal floor.
i) Draw a diagram to show the forces acting on both rods AB and BC.
ii) Explain why the internal forces in the hinge at B are horizontal.
iii) Calculate the tension in the string.
A woman of mass 56 kg stands on a step 0.5 m from A. Calculate
iv) the new reaction at C
v) the tension in the string and the magnitude of the reaction at B.
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