Here's the Second Harry Potter Question!

Classical Mechanics Level 5

If the image is not clearly visible, No problem! All the details are given in the question

Harry's wand is threatened again, and this time Hermione must save it!

The wand was kept on a rough table (with friction coefficient 1) with one third of the total length on the table and the rest free. Assuming the mass of the rod is m kg, determine at what maximum angle rotated by the wand (shown by x in the image) will Hermione have to shout "arresto momenta" to save the wand from sliding on the table ?

Give your answer as the value of tan(x).

Assumptions: Assume that "Arresto Momenta"stops the wand giving ample time to Hermione to go and handle the wand, thereby saving it from sliding on the table.


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