The motion of a piston in an automobile engine is nearly simple harmonic. If the 1 kg piston travels back and forth over a total distance of 10 cm, what is the maximum speed (magnitude of velocity) when the engine is running at 3000 rpm? (Hint: the 10 cm distance has something to do with amplitude; 3000 rpm needs to be converted to rad/sec) I did convert the 3000 rpm, and I got 314.159 rad/sec. I need some help with this problem a.s.a.p. I don't know where to go with it. Thanks for any help you can give me.