Question

A 605 gram aluminum bar has the following dimensions length 0.75 m, width 0.010 m and height 0.030 m. The bar is clamp at its center and struck along its length, the measured frequency is found to be 3333 Hz.

Determine the measured speed of sound within the metal bar.

Answer 1

Answer:

V= 4999.5 m/s

Explanation:

Given that

mass ,m= 605 gm

Length ,L= 0.75 m

width ,b= 0.01 m

height ,h= 0.03 m

frequency ,f= 3333 Hz

We know that

2 Length = Wavelength

λ= 2 x L

λ = 2 x 0.75 m

λ= 1.5 m

The speed V

V= f x λ

Now by putting the values

V= f x λ

V= 3333 x 1.5 m/s

V= 4999.5 m/s