Given that young's modulus for aluminium is 7.0 x 10¹⁰Nm^-2 and density is 2.7 x 10³kgm^-3 find the speed of the sound produced if a solid bar is struck at one end with a hammer

• A.5.1 x 10³ms^-1
• B.4.2 x 10³ms^-1
• C.3.6 x 10³ms^-1
• D.2.8 x 10³ms^-1
• E.