A uniform plank of mass 2.0kg and length 1.0m is pivoted at one end(adsbygoogle = window.adsbygoogle || []).push({});

in a horizontal plane. It is supported at the other end by a spring with

k = 1000 N/m . What is the angular frequency of small oscillations? It m

may interest you to know that the moment of inertia of a uniform rod about its end is 1/3*M(L^2) where M is the mass and L is the length.

Tried to find Angular frequency by using angular momentum but I didn't find a suitable way to do it. Any suggestions?

The answer is 39s^-1

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Angular Frequency Problem

**Physics Forums | Science Articles, Homework Help, Discussion**