Confused About Directional Motion: Help Needed!

Thread starter F.B
Start date Sep 20, 2005
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Confused Motion

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To solve the problem of a watercraft with an initial velocity of 6.4 m/s [East] and an average acceleration of 2.0 m/s² [South] over 2.5 seconds, vector notation is essential. The initial velocity can be represented as 6.4i m/s, while the acceleration is 2.0j m/s². After calculating the change in velocity due to acceleration (5.0j m/s), the final velocity combines both components, resulting in a vector of 6.4i - 5.0j m/s. Understanding how to break down the components and apply vector addition is crucial for tackling similar directional motion problems. Mastery of these concepts will enhance comprehension of 2D motion dynamics.

Sep 20, 2005

F.B

I have no idea how to do these questions. My teacher did not explain anything.

Anyways my question is:

A watercraft with an initial velocity of 6.4 m/s [East] undergoes an average acceleration of 2.0 m/s^2 [South] for 2.5 s. What is the final velocity of the watercraft?

This are going in different directions. How do i do these types of questions? Please help me.

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Sep 20, 2005

Leong

use vector notation in 2D ie i and j.

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