In: Physics
A student is observing the oscillations of a mass on the end of
a spring. The spring has a force constant of 6 x
10-5N/m, and the mass is 0.15 kg. She pulls
it 6 cm below equilibrium and lets it go. She now
writes an equation which she believes describes the motion of the
mass. In her description, the y axis is vertical, and UP is
positive. Her equation is
y = (3 cm) sin ( 0.02 sec-1 t + 3.14)
(A) Does she have the amplitude
right? If not, what was right? If yes, explain.
(B) Does she have the frequency
right? If not, what was right? If yes, explain.
(C) Does she have the phase angle right? If not,
what was right? If yes, explain.