Velocity and Speed: Diagrams for Rowing Downstream and Southeastward

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SUMMARY

The discussion focuses on calculating the velocity of a boat in a river with a current. The current velocity (Vc) is established at 3.0 km/h east, while the boat's speed (Vb) is 6.0 km/h. For part A, the correct diagram shows the boat's velocity aligned with the current, resulting in a combined velocity of 9.0 km/h east. For part B, the boat's velocity must be represented at a 45-degree angle southeast, combining both the boat's speed and the current's influence.

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Homework Statement



A boat is placed in a river, which has a current velocity, Vc of 3.0 km/h east, relative to the shore. Relative to the river, the rower can maintain a boat speed, Vb of 6.0 km/h.
A) Draw a diagram that could be used to find the boat's velocity relative to the shore if the boat is being rowed downstream.
B) Draw a diagram where the direction of the boats velocity is relative to the shore southeastward.

Homework Equations



None.

The Attempt at a Solution


A) I have a line going straight down, Vb and a 90 degree turn to the right, Vc.
B) I know it's not right, but the same as above is what I thought.
 
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Neither of your answers are correct.

If the boat is being rowed down stream, that means the boats velocity relative to the water is in the same direction that the river is flowing. And "East" is usually the direction to the right on the page. Southeast will be in a 45 degree diagonal direction down-and-to-the-right.
 

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