Ask Question
16 July, 11:52

A sailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s^2. After the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s. Assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? Answer using a coordinate system where rightward is positive.

+4
Answers (1)
  1. 16 July, 12:09
    0
    +7.0 m/s

    Explanation:

    Let's take rightward as a positive direction.

    So in this problem we have:

    a = - 2.5 m/s^2 acceleration due to the wind (negative because it is leftward)

    t = 4 s time interval

    v = - 3.0 m/s is the final velocity (negative because it is leftward)

    We can use the following equation:

    v = u + at

    Where u is the initial velocity

    We want to find u, so if we rearrange the equation we find:

    u = v - at = (-3m/s) - (-2.5m/s^2) (4s) = + 7.0m/s

    and the positive sign means the initial direction was rightward.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A sailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s^2. After the wind stops, the ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers