9702/51/O/N/17: A student is investigating how the forces acting on a bridge vary as the position of a load on the bridge is changed. The bridge is modeled as shown in Fig. 2.1 with two newton-meters providing the support forces.
A load of mass m is placed at a distance x from support A. The readings of the newton-meters T1 and T2 are recorded for different values of x.
It is suggested that T1, T2 and x are related by the equation
\( T_1 - T_2 = \dfrac{mg(s - x) - mgx}{s} \)
where s is the separation of the newton-meters and g is the acceleration of free fall.
Oct/Nov 2017 Paper 5 Variant 1 Questions 2 data analysis.
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