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clear
//downstream direction as x
//direction across river as y
//
//variable declaration
Vx= 8 //velocity of stream, km/hour
Vy=(20) //velocity of boat,km/hour
V=sqrt((Vx**2)+(Vy**2)) //resultant velocity** km/hour
theta=Vy/Vx
alpha= atan(theta)*180/%pi //angle, degrees
printf("\n The resultant velocity : %0.2f km/hour",V)
printf("\n %0.2f °",alpha)
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