Mechanics Challenge 1

There is a teeter toy with base stick of length L = 1 m L = 1 m and from the top end, 2 balls of masses m = 2 k g m = 2 kg are suspended with a string of length l = 3 m l = 3 m which makes an angle θ = 6 0 \theta = 60^{\circ} with the base stick. Find the time period of small oscillations of the system in the vertical direction.

If the time period can be written as p a q b p^a q^b where p , q p,q are prime numbers and a , b a,b are real numbers, give your answer as p + a + q + b p + a + q + b .

Details and Assumptions

  1. Neglect oscillations in the horizontal direction.

  2. Oscillations are very small.

  3. Take g = 10 m s 2 g = 10 m{s}^{-2} .


The answer is 12.

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