Wires W1 and W2 are made of same material having the breaking stress of 1.25 $\times$ 109 N/m2. W1 and W2 have cross-sectional area of 8 $\times$ 10$-$7 m2 and 4 $\times$ 10$-$7 m2, respectively. Masses of 20 kg and 10 kg hang from them as shown in the figure. The maximum mass that can be placed in the pan without breaking the wires is ____________ kg. (Use g = 10 m/s2)

Question

Wires W₁ and W₂ are made of same material having the breaking stress of 1.25 $\times$ 10⁹ N/m². W₁ and W₂ have cross-sectional area of 8 $\times$ 10^$-$7 m² and 4 $\times$ 10^$-$7 m², respectively. Masses of 20 kg and 10 kg hang from them as shown in the figure. The maximum mass that can be placed in the pan without breaking the wires is ____________ kg. (Use g = 10 m/s²)

Correct Answer

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