A Student Has a Spring, Whose Spring Constant Is 5

Multiple Choice

A student has a spring, whose spring constant is 5.0 N/m, with a 1.0-kg mass attached to it that is hanging freely. The quality factor of the system is 50. She wishes to have the maximum displacement of the system be 7.5 cm. The force and frequency required to produce this motion are

A) 0.0075 N and 2.8 s.
B) 0.0075 N and 1.4 s.
C) 19 N and 2.8 s.
D) 19 N and 1.4 s.