Two strings with linear densities of 5 g/m are stretched overpulleys, adjusted to have vibrating lengths of 50 cm, and attached to hanging blocks. Theblock attached to string 1 has a mass of 20 kg and the block attached to string 2 has massM. Listeners hear a beat frequency of 2 Hz when string 1 is excited at its fundamentalfrequency and string 2 is at its third harmonic. Required:
What is one possible value for mass M?

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.