What's the linear mass density of a string?

How to figure out the fundamental frequency of a string?

• I just don't get this stuff... I tried to follow by an example but I'm getting lost. can someone PLEASE explain these to me? 1.) The tension (T) in a string fixed across a 1 m length (L) is 400 Newtons, and the linear mass density of the string is 0.01 kg/m. What is the fundamental frequency of this string? 2.) The tension (T) in a string fixed across a 2 m length (L) is 100 N, and the fundamental frequency is measured to be 100 Hz. What is the linear mass density of the string? Thanks! I'm trying to do the example problems to practice for the exam next Friday but I'm stuck :/

• Answer:

  velocity = sqrt ( tension / mass per unit length ) Use this link calculator http://hyperphysics.phy-astr.gsu.edu/hbase/waves/string.html 1- fundamental frequency would be 100 Hz. 2-mass/length = 0.625 gm/m Goodbye