Need help with physics problems. I don't know what to do.

saw that moving to the right. Using Representations PART C: The snapshot above is repeated below, but this time, eight positions on the string are marked. At the instant t = 0, sketch a velocity vector arrow for each of the marked positions, showing the instantaneous velocity for each of the eight parts of the string. If the velocity at a given position is zero, write "v = 0" at that location. Wave at time t=0 25 -20 -15 10 -5 5 0 15 20 25 LL. Position x(meters) PART C: Suppose that the amplitude of the wave is 0.4 meters. What is the average speed of the bead as it moves? Explain