(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

To an observer not in motion in the ground, the trajectory of a projectile is described by:

[itex]y = x - 10^{-3}x^2[/itex](In SI units)

Where it was adopted x = 0 and y = 0 for the origin point. Determine the trajectory equation for an observer that moves at 20sqrt(2) m/s in relation to the ground, in the positive x axis.

(Answer is [itex]y = \frac{5}{3}x - \frac{1}{360}x^2[/itex])

2. Relevant equations

Only the equations already given.

3. The attempt at a solution

I have no idea whatsoever on how to deal with this problem. I have learned how to deal with relative position problems, and relative velocity problems, but I have no idea how to change the equation themselves and make them reflect that.

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# Homework Help: Relative motion problem

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