[EN] The series about Nowe Włochy district have to include also the cache about the church. It is definitely a high-rise dominant, the building would be visible from every place of the district, if not hidden by trees or other buildings. How high is it exactly ? This the first thing we have to count. It will be x metres. Let’s say, if we stand at the intersection of Chrościckiego and Łuczek streets, so y metres from the front elevation of the church (let’s round y to full hundreds), we can cover it with a 15-centimetre line, held 75 cm from our eyes (let’s say our eyes are on ground level).
Now, let’s imagine that a tourist climbed to the view terrace located on the top of one of church towers (so on x-8,75 metres high). The view that he saw impressed him so much, that he decided that he has to come back here someday. To make this wish come truth, he threw a coin down to the ground. This is off course a fake, because there is no viewing terrace on the top of the church. Luckily there isn't, because such coin could really hurt somebody, because after t seconds of falling it would reach the speed of z m/s. Let’s say the earth acceleration is 10 m/s2. We don’t take under consideration the resistance of air.
Now there is enough data to count the coordinates of the cache.
a = y*t - (z-13)*(x-28)
b = (5*y):(2*t) - (x-31)*(z-22)
N 52 12.a
E 20 54.b