Add lab session 3

Handed in on 27 Oct 2020.

Change-Id: I00ae5f8e3910fa1ba0b2579e88894f3b5292fb1f
diff --git a/p3/data/exp4/fase1.dat b/p3/data/exp4/fase1.dat
new file mode 100644
index 0000000..491e0f1
--- /dev/null
+++ b/p3/data/exp4/fase1.dat
@@ -0,0 +1,11 @@
+0	20.6
+30	20.4
+60	20.6
+90	20.6
+120	20.6
+150	20.8
+180	20.8
+210	20.8
+240	20.8
+270	20.8
+300	21
diff --git a/p3/data/exp4/fase2_1kg_3n_rapid.dat b/p3/data/exp4/fase2_1kg_3n_rapid.dat
new file mode 100644
index 0000000..4a4a190
--- /dev/null
+++ b/p3/data/exp4/fase2_1kg_3n_rapid.dat
@@ -0,0 +1,17 @@
+0	27.8
+15	27.6
+30	27.8
+45	27.8
+60	27.8
+75	27.8
+90	27.8
+105	28
+120	28
+135	28.2
+150	28.2
+165	28.2
+180	28.2
+195	28.2
+210	28.2
+225	28
+240	28
diff --git a/p3/data/exp4/fase2_5kg_12n_rapid.dat b/p3/data/exp4/fase2_5kg_12n_rapid.dat
new file mode 100644
index 0000000..10af50f
--- /dev/null
+++ b/p3/data/exp4/fase2_5kg_12n_rapid.dat
@@ -0,0 +1,15 @@
+0	28.4
+15	28.4
+30	28.4
+45	28.6
+60	29.2
+75	29.6
+90	29.8
+105	30.4
+120	31
+135	31.4
+150	31.4
+165	31.8
+180	31.8
+195	31.8
+210	31.8