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Standard VIII

Physics

Tension

A rope of mas...

Question

A rope of mass m and length L is vertically suspended from end. The tension in rope at a distance $\frac{L}{3}$ from suspended end is

zero

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\frac{m g}{3}

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\frac{2 m g}{3}

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Solution

The correct option is D $\frac{2 m g}{3}$
Let $T$ be the weight suspended below it $= \frac{m}{L} \times \frac{2 L}{3} \times g = \frac{2 m g}{3}$ .

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A rope of mass m and length L is vertically suspended from end. The tension in rope at a distance L3 from suspended end is

The correct option is D 2mg3Let T be the weight suspended below it=mL×2L3×g=2mg3.

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The correct option is D $\frac{2 m g}{3}$
Let $T$ be the weight suspended below it $= \frac{m}{L} \times \frac{2 L}{3} \times g = \frac{2 m g}{3}$ .