A) \[80{}^\circ C\]
B) \[60{}^\circ C\]
C) \[160{}^\circ C\]
D) \[40{}^\circ C\]
Correct Answer: A
Solution :
[a] Heat produced \[=ms\Delta T =\frac{1}{2}\left( \frac{1}{2}m{{v}^{2}} \right)\] \[\Rightarrow \Delta T=\frac{{{v}^{2}}}{4s}=\frac{{{(200)}^{2}}}{4\times 125}=\frac{4\times {{10}^{4}}}{4\times 125}={{80}^{\operatorname{o}}}C\]You need to login to perform this action.
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