A Body of Mass 5

Multiple Choice

A body of mass 5.0 kg is suspended by a spring which stretches 10 cm when the mass is attached. It is then displaced downward an additional 5.0 cm and released. Its position as a function of time is approximately

A) y = −0.10 sin 9.9t.
B) y = 0.10 cos 9.9t.
C) y = −0.10 cos (9.9t + 0.1) .
D) y = 0.10 sin (9.9t + 5) .
E) y = −0.05 cos 9.9t.