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Exercise to Simulate and Fit a Parabolic Shot.

In this exercise
we assume that we obtained the measurements of the height and the
distance of the movement of a projectile by means of an experiment.
We define the vectors "Height" and "Distance" that have our physical measurements.

We fit a second-order model "lmr".
We defined a scale of heights "nh" to evaluate the motion equation.

With the coefficients of the adjusted model we define the motion equation "fit" and finally we plot.
**Height = c(100, 200, 300, 450, 600, 800, 1000) **

Distance = c(253, 337, 395, 451, 495, 535, 576)

**lmr = lm(Distance ~ Height + I(Height^2))**

lmr

**nh = seq(100, 1000, 10)**

**fit = lmr$coefficients[1]+ lmr$coefficients[2]*nh + **
**lmr$coefficients[3]*nh^2**

**fit**

plot(Height, Distance, col = "red", main="Parabolic Shot Experiment")

**lines(nh, fit, lty=1, col = "blue")**
Get the example in:
https://github.com/pakinja