Somehow I haven't found anyone on the internet can answer this: during muscle contraction, does the thin myofilament slide past the stationary thick myofilament, or does the thick myofilament slide past the stationary thin myofilament?
This is an article on muscle contraction. It'll help to solve your problems. Especially read the part where the information about mechanism of power stroke is given (above figure 11.24). Ask if you have furthur questions after reading this article!