A-LevelMathematicsMechanicsOct/Nov 2017Paper 5 Q49 Marks
A light elastic string has natural length 2 m and modulus of elasticity 39 N. The ends of the string are attached to fixed points A and B which are at the same horizontal level and 2.4 m apart. A particle P of mass m kg is attached to the mid-point of the string and hangs in equilibrium at a point 0.5 m below AB [Figure 4.1].
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