A block on a spring is pulled to the right and released at t=0s. It passes x=3.00cm at t=0.685s, and it passes x=-3.00cm at t=0.886s.
a) What is the angular frequency?
b) What is the amplitude?
The Attempt at a Solution
Since the spring was initially pulled to the right, I assumed that the distance it was pulled would be the amplitude and with the initial conditions x0=Acos(phi_0)=A, I set phi_0=0. Plugging in the times and positions,
I tried solving for an equation for A and plugging it into the other equation, but it just ended up looking like a complicated mess. Any insight would be appreciated =)