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Velocity and Speed

  • Thread starter C42711
  • Start date
  • #1
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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.
 

Answers and Replies

  • #2
Chi Meson
Science Advisor
Homework Helper
1,789
10
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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