The two wires shown in figure are made of the same material which has

1.	The two wires shown in figure are made of the same material which has a breaking stress of 8×8NM−2. The area of cross section of the upper wire is 0.006cm2 and that of the lower wire is 0.003cm2. The mass m1=10kg,m2=20kg and the hanger is light. (a) Find the maximum load that can be put on the hanger without breaking a wire. Which wire will break first if the load is increaed ? (b) Repeat the above part if m1=10kg and m2=36kg.
Answer» The two wires shown in figure are made of the same material which has a breaking stress of $8 \times^{8} N M^{- 2}$ . The area of cross section of the upper wire is $0.006 c m^{2}$ and that of the lower wire is $0.003 c m^{2}$ . The mass $m_{1} = 10 k g, m_{2} = 20 k g$ and the hanger is light. (a) Find the maximum load that can be put on the hanger without breaking a wire. Which wire will break first if the load is increaed ? (b) Repeat the above part if $m_{1} = 10 k g$ and $m_{2} = 36 k g .$

The two wires shown in figure are made of the same material which has a breaking stress of 8×8NM−2. The area of cross section of the upper wire is 0.006cm2 and that of the lower wire is 0.003cm2. The mass m1=10kg,m2=20kg and the hanger is light. (a) Find the maximum load that can be put on the hanger without breaking a wire. Which wire will break first if the load is increaed ? (b) Repeat the above part if m1=10kg and m2=36kg.

Answer»

The two wires shown in figure are made of the same

material which has a breaking stress of $8 \times^{8} N M^{- 2}$ . The area of cross section of the upper wire is $0.006 c m^{2}$ and that of the lower wire is $0.003 c m^{2}$ . The mass $m_{1} = 10 k g, m_{2} = 20 k g$ and the hanger is light. (a) Find the maximum load that can be put on the hanger without breaking a wire. Which wire will break first if the load is increaed ? (b) Repeat the above part if $m_{1} = 10 k g$ and $m_{2} = 36 k g .$

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