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--- courses:phy101l:2 [2023/06/17 10:30] – asad
+++ courses:phy101l:2 [2023/10/15 04:02] (current) – asad
@@ Line 1: / Line 1: @@
 ====== 2. Gravitational acceleration from a pendulum ======
-Report sample: https://colab.research.google.com/drive/1XMSfX646Gj-83531zYt1wXZ8RA0N1uOP?usp=sharing
+[[https://colab.research.google.com/drive/1XMSfX646Gj-83531zYt1wXZ8RA0N1uOP?usp=sharing|Click here for the report sample]]
 ===== - Introduction and theory =====
@@ Line 44: / Line 44: @@
 ===== - Graphical analysis =====
-===== - Results =====
+===== - Calculating g =====
+Find $R$ from here: https://rechneronline.de/earth-radius
+$$ g = \frac{GM}{R^2} $$
 ===== - Discussion and conclusion =====
+Answer the following questions in Discussion.
+  - Why the angle of deflection of the pendulum should not be large?
+  - Why are the periods at 10, 30, 70 and 90 cm similar?
+  - Why do you get two symmetric curves after plotting $T$ as a function of $l$.
+  - If your were periods at 10, 30, 70 and 90 cm were not as similar as expected, discuss why this happened?