(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The figure below shows a pendulum of length L with a bob of mass M. The bob is attached to a spring that has a force constant k. When the bob is directly below the pendulum support, the spring is unstressed. Derive an expression for the period of this oscillating system for small-amplitude vibrations (assume there is no displacement from the horizontal). Suppose that M = 1.80 kg and L is such that in the absence of the spring the period is 2.90 s. What is the force constant k if the period of the oscillating system is 1.45 s?

2. The attempt at a solution

Tpendulum = 2pi*[itex]\sqrt{L/g}[/itex]

then L= 2.089 m

....I seriously have no idea what to do next please help asap.

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# NEED HOMEWORK HELP Mass/Spring/Pendulum system

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