# WAVES and vibrations

#### gansta344u

1. Homework Statement
Tension is maintained in a string as in the
figure. The observed wave speed is 26 m/s
when the suspended mass is 3.2 kg .What is the mass per unit length of
the string? The acceleration of gravity is
9.8 m/s2 . Answer in units of kg/m

3. The Attempt at a Solution
can someone please guide me in the direcxtion of which i should aproach the problem because im really confused

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#### Redbelly98

Staff Emeritus
Homework Helper
There is an equation for wave speed on a string. It has to do with tension and mass-per-length, and should be in your text book.

#### gansta344u

do u mean v=frequency(wave length)

#### Redbelly98

Staff Emeritus
Homework Helper
No, not that one. It should involve the string's tension, as well as the mass-per-unit-length.

#### gansta344u

its okay i figured it out

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