1. Fig 1.1 is a diagram of a source that has a mass of 500 g and is connected to a rope of length 20 cm. The rope is attached to point Q and has a tension of 800 N. The source travels around point Q anticlockwise in a circular path with a velocity of v_s. It emits a sound wave of frequency f_s. When the source is at point P, an observer stands directly in line to the direction of motion at point O.

Fig 1.1

What is the value of v_s and $\frac{{f}_{o}}{{f}_{s}}$ when the source is at point P?

Speed of sound, v = 340 m s^-1