Hookes law

physics/hookes_law.py

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+# Hookes Law
+"""
+Hookes Law states that the Force is directly proportional to the extension
+or compression of an elastic object, provided the limit of proportionality
+is not exceeded.
+Formulae : F = -k*x
+F: Force
+k: spring constant
+x: displacement
+x is the displacement from the equilibrium position
+The negative sign indicates that the restoring force acts in the opposite
+direction to the displacement, always working to bring the object back to
+its original state.
+Reference: https://en.wikipedia.org/wiki/Hooke%27s_law
+"""
+
+
+def hookes_law(spring_constant: float, displacement: float) -> float:
+    """
+    Calculate the Hookes law from the given values of spring constant 'k'
+    and the displacement 'x' from the equilibrium position.
+    >>> hookes_law(200, 0.05)
+    -10.0
+    >>> hookes_law(50, 5)
+    -250
+    >>> hookes_law(300, 3)
+    -900
+    """
+    return round(-spring_constant * displacement, 2)
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()