A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is 4 × 10^8 N / m^2 and its radius is 4…

A lift of mass $\displaystyle 1600$ kg is supported by thick iron wire. If the maximum stress which the wire can withstand is $\displaystyle 4 \times 10^8 \mathrm{~N} / \mathrm{m}^2$ and its radius is $\displaystyle 4$ mm , then maximum acceleration the lift can take is $\displaystyle \_\_\_\_$ $\displaystyle \mathrm{m} / \mathrm{s}^2$. (take $\displaystyle \mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ and $\displaystyle \pi=3.14$ )