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Wewaii [24]
3 years ago
8

A boat is traveling with a velocity of 18 meters/second relative to water and the river is flowing at a velocity of 2.5 meters/s

econd relative to the shore. What will be the velocity of the boat if the boat and the water are in opposite directions?
Physics
2 answers:
ddd [48]3 years ago
8 0
Vt = Vboat - Vriver 
Vt = 18 - 2.5 = 15.5 m/s 

If the boat's direction is the same as the water, you sum the velocities of the river and the boat . 
I am Lyosha [343]3 years ago
8 0

Answer:Velocity of boat is 15.5 \frac{m}{s}

Explanation:Using equation of relative motion

V_{boat,water}=V_{boat}-V{water}

=>V_{boat}=V_{boat,water}+V_{water}

where velocity of boat relative to water , V_{boat,water}=18 m/s

velocity of water, V_{water}=-2.5\frac{m}{s}

and velocity of boat , V_{boat}=? \frac{m}{s} to be calculated.

Putting the known values in the above equation , we get

V_{boat}= (18-2.5)\frac{m}{s}=15.5\frac{m}{s}

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