A 100 Kg Mass Is Attached to the End of a a 2.00

Multiple Choice

A 10.0 kg mass is attached to the end of a 2.00 m brass rod with a 1.00 mm diameter.If the tensile modulus of brass is 9.10 $\times$ 10¹⁰ N/m²,then the period of the simple harmonic motion of the mass is

A) 0.175 sec.
B) 0.105 sec.
C) 0.133 sec.
D) 0.145 sec.
E) 0.167 sec.