Answer:
\[u=40m/s\]
\[a=10m{{s}^{-2}}\]
Distance travelled by the body in 15th second
\[={{S}_{15}}=?\]
We know that, \[{{S}_{n}}=u+\frac{a}{2}(2n-1)\]
Here n = 15
\[{{S}_{15}}=40+5(29)=40+145=185m\]
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