A) 10 km/hr
B) 8 km/hr
C) 6 km/hr
D) 4 km/hr
Correct Answer: C
Solution :
Given \[\overrightarrow{AB}=\]Velocity of boat= 8 km/hr \[\overrightarrow{AC}=\]Resultant velocity of boat = 10 km/hr \[\overrightarrow{BC}=\]Velocity of river\[=\sqrt{A{{C}^{2}}-A{{B}^{2}}}\] \[=\sqrt{{{(10)}^{2}}-{{(8)}^{2}}}=6\ km/hr\]You need to login to perform this action.
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