This is the question

A projectile is fired from a gun at 45 degrees to the horizon. The displacement of the projectile in the x axis is defined by the following function:

X=50ln(t+0.25)-50ln(0.25)

The coefficient of resistance is the same in both the x and y axes, and the resistance is proportional to the velocity squared.

From this, I need to find the coefficient of resistance as part of one of the questions, and I am confused how to do this.

Thanks so much

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