1. The problem statement, all variables and given/known data A piston in an automobile engine is in simple harmonic motion. Its amplitude of oscillation from the equilibrium (centered) position is ±4.73 cm and its mass is 1.733 kg. Find the maximum velocity of the piston when the auto engine is running at the rate of 4380 rev/min. Answer in units of m/s. 2. Relevant equations Vmax=Aw 3. The attempt at a solution I attempted to take the Amplitude (.0437 m) and multiply it by the angular frequency. I first converted it into revolutions per second and then divided 2pi by the answer I got.