A) \[3.0m/s\]
B) \[1.5m/s\]
C) \[1.0m/s\]
D) \[2.25m/s\]
Correct Answer: C
Solution :
[c] \[{{A}_{1}}{{v}_{1}}={{A}_{2}}{{v}_{2}}+{{A}_{3}}{{v}_{3}}\] \[A\times 3=A\times 1.5+1.5A\times {{v}_{3}}\Rightarrow {{v}_{3}}=1m/s\]
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