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A beam is supported at its ends by supports which are 12 metres apart. Since the load is connected at its centre, there is a deflection f 3 cm at the centre and the deflected beam is in the shape of a parabola. How far from the centre is the deflection 1 cm?

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Hence `RQ=1`cm
`QR=3cm-1cm=2cm=2/100m`
Let `op=x`
...
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